Tank Inspection O-rings

Tired of paying high prices for Scuba Tank Neck O-rings?  I was too, so went out and found a reliable source for genuine DuPont Viton® O-rings.  Each of the o-rings listed below is made from virgin material and has been tested by an independent engineering laboratory to verify that they are the correct hardness.  Both the Viton and Nitrile (Buna-N) varieties have been tested to meet the ASTM specification for 90 durometers of hardness on the "A" scale, which is correct for static o-rings used on scuba tanks.

Viton o-rings are typically used for Nitrox tanks and Nitrile (Buna-N) o-rings are used for air tanks.     

Size 214 Viton O-ring.  (90 duro-black) These are the most common tank neck o-ring and are used in all aluminum cylinders and most modern steel cylinders using a 3/4" NPS thread.  These o-rings are for Nitrox and oxygen compatible service.   In Stock 214 Viton O-ring 25 O-rings $20.00 10 O-rings $8.00 50 O-rings $39.00	Size 214 Nitrile O-ring.  (90 duro-black) These are the most common tank neck o-ring and are used in all aluminum cylinders and most modern steel cylinders using a 3/4" NPS thread.  These o-rings are for use with compressed air scuba tanks.  Nitrile is also known as Buna-N.   In Stock   Size 214 Nitrile O-rings 50 O-rings $8.00 25 O-rings $5.00 10 O-rings $3.00
Size 116 Viton O-ring.  (90 duro-black) These are the tank neck o-rings used in Genesis and older PST steel tanks with the "small" 7/8" UNF threads.  These o-rings are for Nitrox and oxygen compatible service. In Stock   Size 116 Viton O-rings 50 O-rings $25.00 25 O-rings $13.00 10 O-rings $7.00	Size 116 Nitrile O-ring.  (90 duro-black) These are the tank neck o-rings used in Genesis and older PST steel tanks with the "small" 7/8" UNF threads.  These o-rings are for compressed air compatible service. In Stock Size 116 Nitrile O-rings 50 O-rings $5.00 25 O-rings $3.00 10 O-rings $2.00
Size 112 Viton O-ring.  (90 duro-black) These are the DIN O-rings that go between the tank valve and your regulator.  These o-rings are for Nitrox and oxygen compatible service.  In Stock   Size 112 Viton O-rings 50 O-rings $19.00 25 O-rings $10.00 10 O-rings $5.00	Size 112 Nitrile O-ring.  (90 duro-black) These are the DIN O-rings that go between the tank valve and your regulator.  These o-rings are for compressed air service. In Stock   Size 112 Nitrile O-rings 100 O-rings $10.00 50 O-rings $6.00 25 O-rings $4.00
Size 014 Viton O-ring.  (90 duro-black) These are the k-valve, yoke o-rings that go between the tank valve and your regulator.  These o-rings are for Nitrox and oxygen compatible service.  In Stock   Size 014 Viton O-rings 50 O-rings $9.50 25 O-rings $5.00 10 O-rings $2.50	Size 014 Nitrile O-ring.  (90 duro-black) These are the k-valve, yoke o-rings that go between the tank valve and your regulator.  These o-rings are for compressed air service. In Stock   Size 014 Nitrile O-rings 50 O-rings$4.50 USD 25 O-rings$3.00 USD 10 O-rings$2.00 USD

     Note:  shipping will be unavailable May 30 - June 4th and June 13th - June 24th. 

Emerald Sea Scuba, LLC
P.O. Box 5877
Lacey, WA  98509-5877
360-923-0889