Swimables Manual Air Relief Assembly DEX2420MAR2 — Hayward Pro-Grid & SwimClear Compatible, Upgraded Gauge

Swimables DEX2420MAR2 is a manual air relief assembly that replaces Hayward-style air reliefs for DE and cartridge pool filters, with an upgraded pressure gauge and included seals.

This replacement part is designed to restore proper venting and pressure monitoring on compatible Hayward Pro-Grid DE filters and Swim Clear/Swimclear cartridge filters. It arrives with all required O-rings and a new gasket so you can swap it in quickly. The upgraded pressure gauge offers clearer pressure feedback so pool owners can know when backwashing or cleaning is needed.

How does this air relief assembly fit my Hayward-style filter?

The assembly was engineered to match the mounting and sealing surfaces used on many Hayward Pro-Grid DE and Swim Clear cartridge models. Installation is straightforward: remove the old unit, clean the seating area, and press the new assembly into place using the provided seals. No special tools are required for most installs.

• Direct replacement geometry compatible with Hayward Pro-Grid and Swim Clear models
• Includes all O-rings and gasket for a proper seal
• Simple push-in or thread-in fit depending on filter model

What improvements come with the upgraded design?

The updated version adds a clearer pressure gauge face to help you spot rising filter pressure sooner. The manual relief valve remains easy to operate by hand, allowing trapped air to vent safely before service. Materials are selected for pool chemical resistance and durability.

• Newly styled pressure gauge for easier pressure reads
• Hand-operated manual vent for safe air release
• Durable plastics and seals built for pool environments

How do I install and maintain the replacement assembly?

Start by shutting off the pump, then depressurize the system and remove the old air relief assembly. Clean the seat of debris, lightly lubricate the O-rings if desired (lubricant not included), and insert the new unit. Periodic checks of the gauge and valve operation will extend service life.

• Turn off pump and fully relieve system pressure before replacing
• Clean seating area and install included gasket and O-rings
• Optional light lubrication on exterior O-rings for easier seating

What comes in the box and what should I expect after fitting it?

The package contains the Swimables DEX2420MAR2 manual air relief assembly plus all necessary O-rings and a gasket for installation. Once fitted, the assembly will allow trapped air to vent manually and display system pressure more clearly, helping you determine when to clean or backwash the filter.

• Complete air relief assembly ready to install
• Included O-rings and gasket for a leak-free seal
• 30-day satisfaction coverage for replacement or refund

Who is this for: Swimables DEX2420MAR2 is aimed at pool owners, service technicians, and DIYers who need a reliable replacement air relief for Hayward-style DE and cartridge filters. If your filter’s manual vent is damaged, leaking, or the gauge is unreadable, this upgraded assembly provides a straightforward swap with clearer pressure feedback and all required sealing parts included.