SeaCure Mouthpiece Size Chart

Black SeaCure Custom Mouthpiece

SeaCure 1

Fits standard orifice regulators (size 1-1/8” x 1/2”)

Apollo
Aqua Lung
older metal regulators, Conshelf 7 through 21 (snug fit)
Atomic
manufactured pre-2005 only
Beuchat
Evolution, Iceberg, Nitrox, VXT8, VXT Octo, VX4, VX80
Cressi-Sub
XS Compact (snug fit), Ellipse is a 2
Dacor
Pacer Aero (snug fit), post-1992
IST
except Proline is a 2
Ocean Master
Pro Sub
Avalon
SCUBAPRO
S600, S360, S560, R095, and all models before the A700
SEAC
Sherwood
most early models – Brut, Shadow, Magnum II, pre-1992 Blizzard and Oasis
Spare Air
Subgear
“R” series and Cayman
Tabata/Tusa
not TUSA Imprix

Available in clear, blue, black, and pink

Pink SeaCure Custom Mouthpiece

SeaCure 2

Fits intermediate size orifice regulators (size 1-3/16” x 5/8”)

Aeris
Aqua Lung
newer, including Titan, Legend, Kronos, and Mikron
Atomic
manufactured post-2005, Z2, Z3, B2, T2X, T3, M1, ST1
Beuchat
VS3, VS4, VS8, VX10
Dacor
Viper and Eagle
Deep 6
Signature Series
Dive Rite
including O2ptima rebreather, but not the Jet Stream 4500
Edge
Hog and Epic
Forte
Genesis
Halcyon
rebreather and regulators
Hollis
except 500SE is a 4
IDI Regulators
no longer in business (all but Osprey which is a size 1)
Mares
not MARES MR-12-II, III, IV or V
Ocean Edge
Ocean Reef
Oceanic 
including the Alpha 10 (cannot fit Alpha 9 or Omega 3)
Odyssey
Scuba Max
SCUBAPRO
models after 2010, including A700, C-series, C350, C370, G260, R195, S620TI
Sea Elite
Sherwood
9000 Series, Maximus, SR1, 1992 and newer Blizzard and Oasis
Sporasub
SUBGEAR
SG50, SG30, SG10, Aruba, and Bonaire
Tigullio
Tilos
XS Scuba
Inspire and Brawn (Tested at Manufacturer)

Available in clear, blue, black, and pink

Clear SeaCure Custom Mouthpiece

SeaCure 3

Same diameter as a size 1 with double retention ribbing. These regulators do not have the conventional retention lip on the mouthpiece orifice common to all other regulators and therefore no other SeaCure model should be used.

Aqua Lung
older plastic regulators including Micra
Aquatec

Available in clear

Black SeaCure Custom Mouthpiece

SeaCure 4

(size 1-5/16 x 11/16″)

Fits Apeks, Hollis 500SE, Sherwood SR2, and Zeagle regulators, and many rebreathers, including Golem Shrimp BOV, Hollis Prism and Explorer, Innerspace Megalodon, Kiss Gem, and Titan (size 2 may be a snug fit).

Available in black

Black SeaCure Custom Mouthpiece

SeaCure 5

(size 1-7/16 x 13/16″)

Fits Poseidon regulators, Poseidon SE7EN CCR and Poseidon VI CCR, Divesoft BOV (snug fit), Aqualung Calypso Regulator

Available in black

Black SeaCure Custom Mouthpiece

Snorkels

Fits many removable mouthpiece snorkels on the market

Size 1 – Amico, Coral, Cressi-Sub, Dacor, Dive Buddy, Kapitol Reef, Netex, Oceanic, Reef Buddy, SeaQuest

Size 2 – Chiaro, H2Odyssey, IDI, Parkway, Pic, Technisub

Size 3 – Aqua Lung Impulse, SeaVision

Note:  If not sure of the correct size, simply measure the orifice of the regulator or rebreather (outside edge, top to bottom and side to side), or try it on.

Print Friendly VersionSeaCure Regulator Size Chart – May 2018