The size of the mouthpiece varies only on the part that connects to the orifice of the regulator. The actual bite tabs (part that goes in the mouth) do not vary in size. Each mouthpiece is professionally packaged with the following components:

• Moldable Mouthpiece
   
• Bite Limiting Plug and Chain
   
• Zip Tie
   
• Instruction Booklet
   
• Packaging for professional hook display 
   

Size Guide:

SeaCure 1 – fits regulator size 1-1/8” x 1/2” or 2.86 cm x 1.27 cm
 

• 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 – XS Compact (snug fit)
   
• DACOR – Pacer Aero (snug fit), post-1992 models
   
• IST (except Proline is a 2)
   
• NEX – Monterey
   
• OCEAN MASTER
   
• PRO SUB – Avalon
   
• SCUBAPRO – S600, S360, S560, R095, R295, R395, and all models before the A700
   
• SEAC
   
• SHERWOOD – most early models, Brut, Magnum II, Shadow, pre-1992 Blizzard and Oasis
   
• SPARE AIR
   
• SUBGEAR – SG100, SG500, SG1000, Aruba, Bonaire, Cayman
   
• TABATA/TUSA (not TUSA Imprix)
  
  
   

SeaCure 2 – fits regulator size 1-3/16” x 5/8” or 3.02 cm x 1.59 cm

• AERIS
   
• AQUA LUNG – Calypso, Core, Helix, Kronos, Legend, Mikron, Titan (Titan LX is a 4)
   
• ATOMIC – manufactured post-2005, Z2, Z3, B2, T2X, T3, M1, ST1, TFX
   
• BEUCHAT – VS3, VS4, VS8, VX10
   
• CRESSI – Ellipse, Master Cromo
   
• DACOR – Viper and Eagle
   
• DEEP 6 – Signature Series
   
• DGX Gears – D6
   
• DIVE RITE – including O2ptima rebreather, but not the Jet Stream 4500
   
• EDGE – Hog and Epic
   
• FORTE
   
• GENESIS
   
• HALCYON – rebreather and regulators
   
• HOLLIS – regulators (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 – A700, C200, C300, C350, C370, G250, G260, R195, S270, S620Ti, D420
   
• SEA ELITE
   
• SHERWOOD – 9000 Series, Maximus, SR1, SR2, 1992 and newer Blizzard and Oasis
   
• SPORASUB
   
• SUBGEAR – SG10, SG30, SG50
   
• TIGULLIO
   
• TILOS
   
• XS SCUBA – Inspire and Brawn
   
• ZEAGLE – F8