Pentair Manual Air Relief Valve without Clamp (273550Z) pentairpool and this generic version is

and this generic version is designed for Quad DE tank body applications using the 90-423-6106 reference

This type of part is especially useful when the broader filter system remains serviceable and the issue is centered on the cartridge itself

This part has practical value because the 3 inch size helps preserve intended compatibility in larger valve applications rather than relying on a general substitute

Supports a cleaner and more accurate replacement fit

Assemblies that include the bulkhead can be especially practical because they help address both the main fitting and its mounting-related connection in one replacement part

Pentair Manual Air Relief Valve without Clamp (273550Z) pentairpool and this generic version isPentair Manual Air Relief Valve, Without Clamp (273550Z) is a replacement valve component for compatible Pentair pool and spa plumbing systems. Multiport, slide, and high flow valve parts help control water direction through filters, waste lines, returns, and other equipment pathways. This part is useful when servicing a leaking, sticking, cracked, worn, or difficult to operate valve assembly. Confirm the valve size, mounting style, port