Dive Relief Valves

Cressi Start BCD

95 reviews

SKU: CSBSLR

~~$269.95~~ Save: $20 (7%)

^$249.95

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In Stock

DESCRIPTION

A durable Cressi Start BCD with adjustable straps, cargo pockets, and easy donning/doffing.

Pros

Durable construction
Affordable price
Ample pockets
Ease of use
Good fit

Cressi Solid Scuba Package

12 reviews

SKU: CSBSLPCKMD

~~$844.80~~ Save: $244.85 (29%)

^$599.95

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In Stock

DESCRIPTION

A durable scuba package with jacket style BCD, rigid backpack, and reliable demand valve.

Cressi Patrol BCD

9 reviews

SKU: CSBPALR

^$499.95

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In Stock

DESCRIPTION

A lightweight and durable Cressi Patrol BCD with high lift capacity and integrated weight pockets.

Genesis Pro DIN/Yoke Valve

4 reviews

SKU: GNSKV

^$90

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In Stock

DESCRIPTION

A durable chrome-plated brass valve offering DIN/yoke compatibility, high flow, and robust safety features.

Hollis Over Pressure (OP) Pull Dump Valve

3 reviews

SKU: HLSOPV

^$26.95

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In Stock

DESCRIPTION

A durable polycarbonate OP pull dump valve for trimming buoyancy and automatically relieving pressure.

OMS Complete Overpressure Relief (O.P.R.) Valve

1 reviews

SKU: OMSBCA509

^$16

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In Stock

DESCRIPTION

A durable and easy-to-use O.P.R. valve that helps relieve pressure and trim buoyancy.

Thermo by XS Scuba Din/Yoke Valve Pro 3000 PSI EANX

1 reviews

SKU: XSSVP30

^$88

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In Stock

DESCRIPTION

A durable Thermo valve for yoke and DIN regulators with Teflon coating and chromed stem.

XS Scuba Modular Pro Valve

1 reviews

SKU: XSSMPV34L

^$121.95

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In Stock

DESCRIPTION

A modular valve for single or double cylinder setups with durable brass stems and O-ring sealed bonnets.

Hollis Over-Pressure Relief Valve for First Stage

SKU: HLSOPFS

^$26.95

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In Stock

DESCRIPTION

A compact relief valve for first stage regulators that releases excess pressure and protects components.

XS Scuba Over Pressure Valve (OPV) Complete Assembly

1 reviews

SKU: XSSOPCA2

^$15

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In Stock

DESCRIPTION

A corrosion-resistant over pressure valve for lift bags and BCDs, preventing rupture and ensuring safety.

XS Scuba Standard Over-Pressure Valve

SKU: XSSSOPV

^$22

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In Stock

DESCRIPTION

A compact relief valve with chromed brass construction and stainless steel internal spring.

Cressi Solid BCD

SKU: CSBSLDSM

~~$299.95~~ Save: $100 (33%)

^$199.95

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In Stock

DESCRIPTION

A durable black 500D Cordura jacket-style BCD offering ample lift, adjustable straps, and multiple storage options.

Interspiro Octopus Breathing Valve with Holder Open Box

SKU: INSOBVHOB

~~$821~~ Save: $222 (27%)

^$599

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In Stock

DESCRIPTION

A high-performance, cold water-certified octopus valve with holder, engineered for reliability and low breathing resistance.

Thermo by XS Scuba DIN Valve for HP Steel Cylinders 3442 PSI

SKU: XSSVD34

^$106

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In Stock

DESCRIPTION

A high-pressure steel cylinder DIN valve with a Teflon-coated HP seat and chromed valve stem.

XS Scuba Pro Valve with 1/2" NPT Threads

SKU: XSSPVN

^$127

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In Stock

DESCRIPTION

A durable brass valve with removable DIN insert and color-coded safety hand wheel.

Cressi Solid Discovery Scuba SPG Package

SKU: CSBSLD2XSK

~~$904.80~~ Save: $354.85 (39%)

^$549.95

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In Stock

DESCRIPTION

A durable scuba package featuring a black 500D Cordura BCD, chromed brass regulator, and compact pressure gauge.

XS Scuba Deluxe Over Pressure Valve

SKU: XSSDOPV

^$59

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In Stock

DESCRIPTION

A compact relief valve with a Delrin cap to protect adjustment point and Viton o-rings.

Cressi Solid Discovery Scuba PD2 Package

SKU: CSBSLD2XLK2

~~$989.85~~ Save: $379.90 (38%)

^$609.95

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In Stock

DESCRIPTION

A comprehensive scuba package featuring a durable black Cordura BCD, brass regulator, and color-coded gauge console.

Dive Rite Relief Valve Rebuild Kit

SKU: DIVEX2774

^$13

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In Stock

DESCRIPTION

A comprehensive rebuild kit designed for maintaining and repairing scuba relief valves.

Catalina 80 Cubic Foot Aluminum Tank with Pro Valve

153 reviews

SKU: AQUTA8BK

~~$369.95~~ Save: $82.05 (22%)

^$287.90

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In Stock

DESCRIPTION

A 80 cubic foot aluminum tank with a pro valve that won't rust, has great buoyancy, and a high flow capacity valve.

Pros

Well-made and durable
Good customer service
Variety of color options
Great price and value
Fast delivery time

Cressi XS Octopus

89 reviews

SKU: CSBOXS

~~$189.95~~ Save: $60 (32%)

^$129.95

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In Stock

DESCRIPTION

A reliable and high-performance Cressi XS Octopus with a lightweight design and dependable valve.

Pros

Great performance and breathability
Good value for the price
Easy to use and adjust
Budget-friendly
Reliable and durable

Cressi Aquapro + BCD

20 reviews

SKU: CSBAPPSM

~~$529.95~~ Save: $130.00 (25%)

^$399.95

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In Stock

DESCRIPTION

A weight-integrated BCD with adjustable straps, relief valves, and accessory pockets by Cressi.

Pros

Great value
Durable construction
Easy-to-use weight pockets
Secure tank hold
Comfortable fit

Dive Alert Deluxe Surface Marker Buoy

17 reviews

SKU: AQUDADSMB

^$64.95

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In Stock

DESCRIPTION

A highly visible surface marker buoy with an over-pressure valve and 400 Denier polyurethane coated nylon material.

Tusa SS-0002 Duo Air II Alternate Combo Inflator

10 reviews

SKU: TBTSS02

^$299

+ wishlist

In Stock

DESCRIPTION

A combination octopus regulator/power inflator with an air balanced power inflator valve and classic downstream regulator valve.

TUSA Active Purge Assist (APA) for TUSA BCD's

8 reviews

SKU: TBTAPA

^$110

+ wishlist

In Stock

DESCRIPTION

A pneumatically assisted purge system with enhanced flow rates for easy care and maintenance.

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Dive Relief Valves

Whether you’re gearing up for a technical cave dive, planning a series of extended cold-water explorations, or simply want to ensure your equipment is as safe and comfortable as possible, understanding the role of dive relief valves is essential. These specialized components serve two main purposes in the world of scuba: facilitating personal comfort during long dives and protecting your gear from overpressure scenarios. For those using drysuits, especially in colder waters or on dives that stretch for hours, a drysuit relief valve—often called a P-valve—can make all the difference. This ingenious system allows divers to stay properly hydrated without the worry of discomfort or interruptions, enabling hands-free urination through a discreet, one-way valve that prevents leaks or backflow. Many technical divers recall the first time they used a P-valve on a marathon cave dive, marveling at the newfound freedom and focus it brought. Proper hydration isn’t just about comfort; it’s a critical factor in reducing the risk of decompression sickness, and a relief valve helps you maintain that balance without compromise. As the weather warms and dive trips become more frequent, these valves offer peace of mind for those long days underwater, whether you’re exploring shipwrecks, photographing marine life, or guiding students through advanced training.

On the equipment protection front, over-pressure relief valves (OPVs) are a key safety feature for certain regulator setups and independent gas cylinders, such as those used for drysuit inflation. While recreational divers may not encounter OPVs often, anyone assembling custom rigs for technical, sidemount, or rebreather diving will recognize their value. These spring-loaded, precisely calibrated valves act as a safety net, venting excess gas if the first stage regulator malfunctions and prevents dangerous hose ruptures or equipment failures. The audible hiss of an OPV releasing pressure is a clear signal to check your gear, and it’s a safeguard that experienced divers appreciate, especially when using specialized inflation bottles or redundant air sources. Selecting the right relief valve means considering the type of diving you do, the configuration of your equipment, and the environments you’ll be exploring. For drysuit users, factors such as valve balance, ease of cleaning, and installation compatibility are paramount. For OPV users, the pressure rating and reliability of the valve can be the difference between a minor inconvenience and a dive-ending incident. These components are also thoughtful gifts for the dedicated diver in your life, particularly those advancing into technical or cold-water diving, where comfort and safety become even more critical.

As you prepare for a season of underwater adventure, whether you’re embarking on challenging expeditions or enjoying leisurely dives with friends, investing in quality relief valves can enhance both your safety and enjoyment. Regular maintenance and proper cleaning—especially for P-valves—are essential to prevent infections and keep your gear performing at its best. Many divers share stories of how a well-chosen relief valve transformed their experience, letting them focus on the thrill of discovery rather than the distractions of discomfort or equipment concerns. For those interested in exploring the nuances of valve designs, including the advantages of balanced options that equalize pressure and minimize leaks, our dedicated guide to Diving Balanced Valves offers in-depth insights. Whether you’re outfitting yourself for the first time, upgrading your current setup, or searching for the perfect gift for a fellow diver, understanding and selecting the right dive relief valve is a step toward safer, more enjoyable underwater experiences all season long.