Aquatonics Replacement Air-Relief Valve & Pressure Gauge Assembly for Sta-Rite System 3 (SM/SD/SS) — Brass Dial, 1-Year Warranty

Aquatonics Replacement 24850-0105 is a brass air-relief valve and dial pressure gauge assembly designed to vent trapped air and monitor tank pressure on Sta-Rite System 3 SM/SD/SS cartridge filters.

Keeping trapped air out of a pool or spa filter improves flow and filtration performance; this Aquatonics assembly gives you a rugged valve and a clear dial gauge built to fit Sta-Rite modular media SM, SD and SS series tanks. The kit replaces worn or leaking parts, restores real-time pressure feedback and includes the installation pieces you need to get your filter back to optimal operation without a lengthy service call.

How will this assembly improve my filter's performance?

Removing air pockets from the filter housing reduces turbulence and lets water pass evenly through the media, which improves clarity and lowers strain on the pump. The integrated pressure gauge shows when the filter needs cleaning, helping you act before performance suffers.

• Brass relief valve vents trapped air for consistent flow.
• Dial gauge provides instant pressure readings for maintenance timing.
• Reduces pump wear by eliminating air-bound operation.
• Restores correct system pressure indications after replacement.

Is this compatible with my Sta-Rite System 3 model?

This assembly is engineered to work with a range of Sta-Rite System 3 modular media models, including SM, SD and SS series variants commonly used for pools and spas. Confirming your model number against the product listing ensures the threads and fitment match your filter tank top.

• Fits many SM series tanks such as S7M120 and S8M150.
• Compatible with SD models like S7D75 and S8D110.
• Works with SS models including S7S50 and S8S70.
• Designed for direct replacement of worn 24850-0105 assemblies.

What materials and durability features does it offer?

The valve body is forged from durable brass to resist corrosion in pool and spa environments, while the pressure dial is housed to withstand outdoor conditions. This combination gives long service life compared to plastic replacements and reduces the need for frequent swaps.

• Solid brass valve body resists corrosion and wear.
• Clear, easy-to-read pressure dial for quick checks.
• Seals and fittings chosen for wet-environment longevity.
• Backed by a 1-year warranty for added confidence.

How simple is installation and what comes in the kit?

The assembly is made for straightforward replacement with no specialty tools required; many owners can install it in minutes. The kit includes the valve/gauge assembly and plumber's tape so you can create a secure seal and minimize downtime.

• Plug-and-play replacement design for fast changeouts.
• Includes plumber's tape for a leak-free seal.
• No special tools or machining required for standard System 3 tanks.
• Clear pressure gauge eliminates guesswork after installation.

Who is this for: Pool and spa owners, service technicians, and maintenance professionals who use Sta-Rite System 3 cartridge or modular media filters and need a dependable, long-lasting air relief valve with accurate pressure monitoring. If you want to restore correct pressure readings, eliminate air-bound filter operation, and avoid repeated replacements, this Aquatonics brass assembly offers a durable, easy-to-install option with a one-year warranty.