Mares First Stage Mr12st Din. - Balanced diaphragm design.- 2 HP 7/16- UNF ports.- 4 LP 3/8- UNF ports.

Apeks Dst Status First Stage. All medium pressure ports are 3/8" so that the reversible XTX second stage can mount to any of the ports Balanced for superior performance An environmental dry kit comes as standard 4 medium pressure ports 3/8" UNF mount

Apeks Ds1 Din. Dry sealed system suitable for cold water diving.- No turret.- 1 MP port 3/8 UNF.- 1 HP port 7/16 UNF.- Version DIN.

Apeks Fst Din. - One piece body.- Angled ports - 4 medium pressure and 2 high pressure.- Dry sealed system.- Luxurious satin silver finish.- Balanced. - Version DIN.

Apeks Tek 3 1st Stage Set. Apeks has developed unique 1st stages specifically for use on a twin set. We have now launched the new TEK3 1st stage regulators designed for use with twin cylinder configuration. The system benefits from streamlined hoses

Hollis Dc1 Din. DC1 1st Stage - High performance over-balanced first stage provides progressively greater intermediate pressure as depth and gas density increases for superior gas delivery under the most extreme conditions.- Swivel turret allows for

Mares First Stage Mr12st Yoke. - Balanced diaphragm design.- 2 HP 7/16- UNF ports.- 4 LP 3/8- UNF ports.

Mares First Stage Mr22t Yoke. - Balanced diaphragm design.- 2 HP 7/16- UNF ports.- 1 LP 1/2- UNF port (primary).- 3 LP 3/8- UNF ports.

Mares First Stage Mr42t Yoke. - Balanced diaphragm design.- 2 HP 7/16- UNF ports.- 4 LP 3/8- UNF ports.