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Adaptors / Special Fittings show info...

The Scuba Doctor has a wide range of premium quality scuba adaptors and special dive fittings from Sonar, Alpha Diving, OmniSwivel and others, for recreational, technical and rebreather divers plus the commercial diving industry.

Reminder: The actual configuration of an adaptor is a mirror image of its use. A 3/8"-24 UNF FEMALE port requires a 3/8"-24 UNF MALE adaptor etc. In technical diving operations where many fittings may get co-mingled, be sure that all adaptor combinations can accommodate the intended flows and pressures.

Looking for a particular fitting you don't see here? Let us know and we'll see if we can find it for you.

We reserve the right to limit order quantities to less than 10 pieces because our supply is appropriate for the demands of individual divers, but not bulk orders. Large volume bulk orders will NOT qualify for our free shipping promotion.


Search Our Product Range


Apeks
Apeks Free-Flow Control Device
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Inline Shut-Off Valves

Apeks Free-Flow Control Device

Regulators not designed for cold water use are especially prone to freezing. This Apeks simple yet extremely effective Free-Flow Control Device...
$149.00  $137.08
-8%
Sonar
Sonar LP One-Way Inline Check Valve - 9/16" Male to Apeks QD
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Sonar LP One-Way Inline Check Valve - 9/16" Male to Apeks QD

The Sonar Low Pressure (LP) 9/16 inch UNF Male to Apeks/SeaQuest Male Quick Disconnect (QD) One-Way Inline Check Valve prevents the influx of water...
$27.00
Sonar
Sonar LP 90 Degree Swivel Adaptor for Regulator
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar LP 90 Degree Swivel Adaptor for Regulator

The Sonar Low Pressure (LP) 9/16 inch UNF Male to 9/16 inch UNF Female, 90 degree Swivel Adaptor is often used to allow underarm routing of a low...
$52.00
Sonar
Sonar LP 3/8" Male UNF Safety Over Pressure Valve (OPV)
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar LP 3/8" Male UNF Safety Over Pressure Valve (OPV)

The Sonar Low Pressure (LP) 3/8 inch Male UNF standard safety Over Pressure Relief Valve (OPV or OPRV) is factory set for 175 to 185 psi for pressure...
$18.00
Sonar
Sonar Apeks Inflator/Ocy QD to Standard Inflator QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar Apeks Inflator/Ocy QD to Standard Inflator QD LP Adaptor

The Sonar Apeks/SeaQuest (Male) Inflator/Octopus Quick Disconnect to Standard (Female) Inflator Quick Disconnect Low Pressure (LP) Adaptor is used to...
$27.00
XS Scuba
XS Scuba Easy Gripper - QD Hose End
Category Path: Scuba and Watersports > Scuba Diving Recreational > BCDs BCs > BC/BCD Accessories / Parts

XS Scuba Easy Gripper - QD Hose End

The XS Scuba Easy Gripper fits onto the Quick Disconnect end of your BCD or Drysuit inflator hose to make it much easier to connect or disconnect the...
$8.00
Sonar
Sonar LP 3/8" Male to 3/8" Female 360 Degree Swivel Elbow
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Swivels and Elbows

Sonar LP 3/8" Male to 3/8" Female 360 Degree Swivel Elbow

Sonar Low Pressure (LP) 3/8"-24 UNF Male to 3/8"-24 UNF Female 90 degree first stage elbow with 360 degree swivel to fit any 3/8"-24...
$37.00
Sonar
Sonar Dust Cap for Yoke Regulators
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar Dust Cap for Yoke Regulators

Sonar Dust Cap for Yoke Regulators prevents sand, dust and water from entering the first stage regulator. Keeping your regulator protected from the...
$12.00
Sonar
Sonar LP Inline Regulator Long Shut-Off Valve
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Inline Shut-Off Valves

Sonar LP Inline Regulator Long Shut-Off Valve

The Sonar Low Pressure (LP) Inline Regulator Long Shut-Off Valve fits in-line between your low-pressure regulator hose and your second stage...
$29.00
Sonar
Sonar Poseidon Adaptor for Jetstream and Xstream Regulators
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 2nd Stage Adaptors

Sonar Poseidon Adaptor for Jetstream and Xstream Regulators

This fitting will adapt any length standard LP regulator hose with a 9/16" female 2nd stage connector for use with both modern and vintage Poseidon...
$75.00
Sonar
Sonar HP 7/16" Male to Four 7/16" Female UNF Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > HP Adaptors

Sonar HP 7/16" Male to Four 7/16" Female UNF Adaptor

Do you need more High Pressure Ports on your Scuba Regulator? Use this Sonar HP 7/16" Male to Four 7/16" Female UNF Adaptor to add three...
$60.00
Sonar
Sonar LP One-Way Inline Check Valve - 3/8" Male to Apeks QD
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Sonar LP One-Way Inline Check Valve - 3/8" Male to Apeks QD

The Sonar Low Pressure (LP) 3/8 inch UNF Male to Apeks/SeaQuest Male Quick Disconnect (QD) One-Way Inline Check Valve prevents the influx of water...
$27.00
Sonar
Sonar 3/8" UNF Male to Mares/SeaQuest Inflator/Ocy QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar 3/8" UNF Male to Mares/SeaQuest Inflator/Ocy QD LP Adaptor

The Sonar 3/8 inch UNF Male to Mares/SeaQuest (Male) BCD/Jacket/Inflator/Octopus Quick Disconnect Low Pressure (LP) Adaptor is used to enable a...
$10.00
Sonar
Male DIN Valve Cover Plug - Machined Delrin
Category Path: Cylinders Tanks > Valves / Manifolds

Male DIN Valve Cover Plug - Machined Delrin

The Male threaded DIN Valve Cover Plug for DIN cylinder valves works with either 200-bar or 300-bar DIN valves to protect your scuba diving...
$24.00
Sonar
LP 20/70/110-Degree Swivel Adaptor for Regulator
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

LP 20/70/110-Degree Swivel Adaptor for Regulator

This Low Pressure (LP) 9/16 inch UNF Male to 9/16 inch UNF Female 20/70/110 degree Swivel Adaptor is often used to allow underarm routing of a...
$52.00
Miflex Hoses
3/8" UNF Male-Female Manifold Adaptor - Inspo/Evo Rebreather
Category Path: Hoses Hardware and Care > Miflex Hoses / Accessories > Miflex Hose Adaptors

3/8" UNF Male-Female Manifold Adaptor - Inspo/Evo Rebreather

3/8" UNF Male x Female Adaptor for standard hoses to connect to Rebreather Manifolds The 3/8" UNF Male x Female Manifold Adaptor allows for...
$24.00
Sonar
Sonar Scubapro Inflator/Ocy to Standard Inflator QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar Scubapro Inflator/Ocy to Standard Inflator QD LP Adaptor

The Sonar Scubapro/Tusa (Male) Inflator/Octopus Quick Disconnect to Standard (Female) BCD/Jacket/Inflator Quick Disconnect Low Pressure (LP) Adaptor...
$27.00
Sonar
Sonar LP 9/16" UNF Male to Apeks Locking Quick Disconnect
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar LP 9/16" UNF Male to Apeks Locking Quick Disconnect

This Sonar Low Pressure (LP) 3/8-inch UNF Male to Apeks/SeaQuest Locking Quick Disconnect (QD) screws into the 2nd stage regulator end of any...
$34.00
Sonar
Sonar Male Sealing DIN Valve Cover Plug
Category Path: Cylinders Tanks > Valves / Manifolds

Sonar Male Sealing DIN Valve Cover Plug

The Sonar Male Sealing DIN Valve Cover Plug provides a true high pressure O-ring seal in both 200 Bar and 300 Bar valves. It's primary purpose is...
$60.00
Sonar
Sonar LP 9/16" Male x Two 9/16" Female Adaptor for Regulator
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 2nd Stage Adaptors

Sonar LP 9/16" Male x Two 9/16" Female Adaptor for Regulator

The Sonar Low Pressure (LP) 9/16 inch UNF Male to two 9/16 inch UNF Female hose connectors is for when you need to run two second stage regulators...
$56.00
Sonar
Sonar 9/16" Male - Apeks/SeaQuest Inflator/Ocy QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Sonar 9/16" Male - Apeks/SeaQuest Inflator/Ocy QD LP Adaptor

The Sonar 9/16-18" UNF Male to Apeks/SeaQuest (Female) BCD/Jacket/Inflator/Octopus Quick Disconnect Low Pressure (LP) Adaptor is used to connect...
$29.00
Alpha Diving Products
Alpha HP 7/16" Male to 7/16" Female UNF - HP Hose Adaptor WB
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Alpha HP 7/16" Male to 7/16" Female UNF - HP Hose Adaptor WB

The Alpha High Pressure (HP) 7/16 inch Male to 7/16 inch Female UNF adaptor with wide bore (approx 4 mm diameter) is used is used as a spacer on high...
$23.00
Sonar
Sonar 3/8" UNF Male to Scubapro/Tusa Inflator/Ocy QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar 3/8" UNF Male to Scubapro/Tusa Inflator/Ocy QD LP Adaptor

The Sonar 3/8 inch UNF Male to Scubapro/Tusa (Male) BCD/Jacket/Inflator/Octopus Quick Disconnect Low Pressure (LP) Adaptor is used to enable a...
$10.00
Sonar
Sonar LP 3/8" Male to Two 3/8" Female UNF T-Port Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Sonar LP 3/8" Male to Two 3/8" Female UNF T-Port Adaptor

Do you need another Low Pressure Port on your Scuba Regulator? Use the Sonar LP 3/8" Male to Two 3/8" Female UNF T-Port Adaptor to add an additional...
$42.00
Sonar
Female DIN Regulator Dust Cap - Machined Delrin
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Female DIN Regulator Dust Cap - Machined Delrin

The Threaded Dust Caps for DIN Regulators is a Female threaded DIN regulator dust cap to screw over the male DIN fitting on a first stage regulator...
$24.00
Sonar
Sonar 1/2" Male Low Pressure Regulator Port Plug
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > Port Plugs and Dust Caps

Sonar 1/2" Male Low Pressure Regulator Port Plug

Need a Low Pressure (LP) 1/2-inch Male Port Plug for your first stage regulator? Maybe you could use one in your save-a-dive kit? Whatever the reason...
$10.00
Sonar
Sonar LP Y Block: 3/8" Female to Two 3/8" Female
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Manifolds and Switch Blocks

Sonar LP Y Block: 3/8" Female to Two 3/8" Female

The Sonar Low Pressure Y-block provides the ability to split a single low-pressure supply line to service two devices such as BC, drysuit, and second...
$56.00
Sonar
Sonar HP 7/16" Male to 3/8" Female UNF Adaptor
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Sonar HP 7/16" Male to 3/8" Female UNF Adaptor

The Sonar High Pressure (HP) 7/16 inch Male to 3/8 inch Female UNF adaptor is for when you need to put a high pressure hose that has a 3/8"-24...
$5.00
Sonar
Sonar Scubapro/Tusa to Apeks Inflator/Ocy QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar Scubapro/Tusa to Apeks Inflator/Ocy QD LP Adaptor

The Sonar Scubapro/Tusa (Male) Inflator/Octopus Quick Disconnect to Apeks/SeaQuest (Female) Inflator/Octopus Quick Disconnect Low Pressure (LP)...
$34.00
Alpha Diving Products
Alpha LP 3/8" Male to 9/16" Male UNF Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Alpha LP 3/8" Male to 9/16" Male UNF Adaptor

The Alpha Low Pressure (LP) 3/8 inch Male to 9/16 inch Male UNF adaptor converts 1st stage thread to second stage thread. The 3/8-inch 24-UNF Male...
$23.00
Sonar
Sonar LP 3/8 UNF Male to Apeks/SeaQuest Locking Quick Disconnect
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar LP 3/8 UNF Male to Apeks/SeaQuest Locking Quick Disconnect

This Sonar LP 3/8 UNF Male to Apeks/SeaQuest Locking Quick Disconnect (QD) screws into a LP port on a first stage regulator so that high-flow low...
$34.00
Sonar
Sonar 7/16" Male High Pressure Regulator Port Plug
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar 7/16" Male High Pressure Regulator Port Plug

Need a High Pressure (HP) 7/16-inch Port Plug for your first stage regulator? Maybe you could use one in your save-a-dive kit? Whatever the reason...
$10.00
Miflex Hoses
Poseidon Adaptor for Jetstream and Xstream Regulators
Category Path: Hoses Hardware and Care > Miflex Hoses / Accessories > Miflex Hose Adaptors

Poseidon Adaptor for Jetstream and Xstream Regulators

Adaptor suitable for newer models of Poseidon Jetstream and Xstream second stage regulators, which can be fitted to the standard 9/16" Female...
$79.00
Sonar
Sonar 9/16-inch Male to Standard Inflator QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Sonar 9/16-inch Male to Standard Inflator QD LP Adaptor

The Sonar 9/16-18" UNF Male to Standard (Female) BCD/Jacket/Inflator Quick Disconnect Low Pressure (LP) Adaptor is used to connect a standard...
$30.00
Sonar
Sonar LP 3/8" Male to Dual 3/8" Female 1st Stage Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Sonar LP 3/8" Male to Dual 3/8" Female 1st Stage Adaptor

The Sonar Low Pressure (LP) 3/8" Male to Dual 3/8" Female 1st Stage Adaptor is used to increase the number of low pressure ports on a first...
$30.00
Sonar
Sonar LP Apeks/SeaQuest Inflator/Ocy QD to 9/16" Female Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar LP Apeks/SeaQuest Inflator/Ocy QD to 9/16" Female Adaptor

The Sonar Low Pressure (LP) Apeks/SeaQuest Inflator/Octopus Quick Disconnect Adaptor (Male) to 9/16 inch UNF (Female) Adaptor is used to connect an...
$13.00
Sonar
Sonar LP 3/8" Male to Three 3/8" Female UNF Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP 1st Stage Adaptors

Sonar LP 3/8" Male to Three 3/8" Female UNF Adaptor

Do you need two more Low Pressure Ports on your Scuba Regulator? Use the Sonar LP 3/8" Male to Three 3/8" Female UNF Triple Adaptor to add...
$47.00
Sonar
Sonar 3/8" UNF Male to Apeks/SeaQuest Inflator/Ocy QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar 3/8" UNF Male to Apeks/SeaQuest Inflator/Ocy QD LP Adaptor

The Sonar 3/8 inch UNF Male to Apeks/SeaQuest (Male) BCD/Jacket/Inflator/Octopus Quick Disconnect Low Pressure (LP) Adaptor is used to enable a...
$10.00
Sonar
Sonar Dust Cap for DIN Regulators
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar Dust Cap for DIN Regulators

Sonar Dust Cap for DIN Regulators prevents sand, dust and water from entering the first stage regulator. Keeping your regulator protected from the...
$12.00
Sonar
Elbow HP - 7/16" Male to 7/16" Female UNF 90 Degree Elbow
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Elbow HP - 7/16" Male to 7/16" Female UNF 90 Degree Elbow

Sonar High Pressure (HP) 7/16 inch Male to 7/16 inch Female UNF 90 degree first stage elbow to fit any 7/16" HP first stage port. Sometimes used to...
$34.00
Alpha Diving Products
Adaptor LP - 1/2M x 3/8F UNF - to Suit Mares Regulator
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Adaptor LP - 1/2M x 3/8F UNF - to Suit Mares Regulator

Alpha low pressure 1/2 inch Male to 3/8 inch Female UNF adaptor to suit Mares regulator. Allows you to connect a standard 3/8 inch regulator hose to...
$30.00
Apeks
SWIVEL SUIT INFLATION UNIT SEATEC
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Swivels and Elbows

SWIVEL SUIT INFLATION UNIT SEATEC

$140.00  $128.80
-8%
Up to 3 days dispatch
Hollis
HOLLIS OMNI SWIVEL
Category Path: Sonar > Reels and Emergency

HOLLIS OMNI SWIVEL

Hollis Omni Swivel The Hollis Omni Swivel will give the diver maximum comfort, and minimise jaw fatigue.   Increase the flexibility of...
$159.00
Oceanic
REGULATOR SWIVEL UNIVERSAL
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Swivels and Elbows

REGULATOR SWIVEL UNIVERSAL

The Oceanic Universal Swivel adapter allows for a swivel to be placed between the divers primary 2nd stage and LP hose.This swivels allows the...
$159.00

Max: 1
Sonar
Sonar HP 3/8-inch Male to 7/16-inch Female UNF Adaptor
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Sonar HP 3/8-inch Male to 7/16-inch Female UNF Adaptor

The Sonar High Pressure (HP) 3/8 inch Male to 7/16 inch Female UNF adaptor allows you to connect a 7/16" Male high pressure hose to a first...
$12.00
Unavailable
Sonar
Sonar 1/4-inch NPT Male to Std Male Scuba BCD QD Adaptor
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Hose Adaptors

Sonar 1/4-inch NPT Male to Std Male Scuba BCD QD Adaptor

The Sonar 1/4 inch NPT Male to Standard BCD Inflator Quick Disconnect adaptor fits many BCD inflator mechanisms. One end of this adaptor has a...
$18.00
Unavailable
Sonar
Sonar 3/8" UNF Male to Standard BCD/Inflator QD LP Adaptor
Category Path: Scuba and Watersports > Scuba Diving Technical > Adaptors / Special Fittings > LP Quick Disconnect Adaptors

Sonar 3/8" UNF Male to Standard BCD/Inflator QD LP Adaptor

The Sonar 3/8 inch UNF Male to Standard (Male) BCD/Jacket/Inflator Quick Disconnect Low Pressure (LP) Adaptor is used to enable a standard...
$10.00
Unavailable - Up to 4 weeks dispatch
Sonar
Sonar 3/8" Male Low Pressure Regulator Port Plug
Category Path: Scuba and Watersports > Scuba Diving Recreational > Regulators > Regulator Accessories / Parts

Sonar 3/8" Male Low Pressure Regulator Port Plug

Need a Low Pressure (LP) 3/8-inch Male Port Plug for your first stage regulator? Maybe you could use one in your save-a-dive kit? Whatever the reason...
$10.00
Discontinued

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