SeaCure Mouthpieces:
- Custom molding reduces jaw fatigue
- Durable material prevents biting through mouthpiece
- Available to fit almost any regulator
SeaCure I -
fits standard orifice regulators. APOLLO; BRIDGESTONE; CORAL; DACOR (new pacer model not older pacer model); BEUCHAT (vs-3, 4 & 5); CRESSISUB; IDI; PARKWAY; HALCYON REBREATHER; PRO SUB; (AVALON) NDS; NEMROD; SCUBA PRO; SEAC; SAS; SHERWOOD (most early models BRUT / SHADOW / MAGNUM II OASIS /pre 1992 BLIZZARDS); TABATA TUSA 500 series; early metal (AQUA LUNG (prev. U.S. DIVER) models; and other standard size orifice regulators.
SeaCure II -
fits intermediate size air orifice regulators APEX; ATOMIC TITANNUM; BEUCHAT(vs6 & 10); CHAIRO; MARES; newer model but not on MARES MR 12 II, III, IV OR V); IST; OCENEDGE; TECKNA; FORTE; OCEANIC; SEAQUEST SHERWOOD (MAXIMUS / OASIS 2/1992 & newer BLIZZARD); ZEAGLE; and other intermediate size orifice regulators.
SeaCure III -
fits AQUA LUNG (prev. U.S. DIVER) plastic regulators, NEW SEAQUEST GENESIS & SEA MECH AQUA LUNG (prev. U.S. DIVER) 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 on plastic AQUALUNG (prev. U.S. DIVER) regulators.
Poseidon / Sherwood Ultima-
while SEACURE is not designed to fit POSEIDON or SHERWOOD ULTIMA, some divers are now using SEACURE II (only on plastic models); however, considerable extra effort is required to mount SEACURE III on these regulators.
Snorkels -
SEACURE fits most removable mouthpiece snorkels; AMICO (I); DACOR 3 MODELS (I); NETEX N); PARKWAY (II); PIC (II); REEF BUDDY (I); SEAQUEST(I): TECHNISUB (II); 
AQUA LUNG (prev. U.S. DIVER) (III); and other removable mouthpiece snorkels.
Regulator or snorkel not listed above if possible, try both SEACURE I and II on the unit in question to see which fits. Otherwise, simply measure the retention lip on the air orifice of the regulator. The results of a recent survey of regulators indicate that almost all fall into two general sizes with some in each group being slightly larger or smaller than the average.