FOREBEN Pool Filter Lid Assembly — 21" Almond Replacement for Pentair 178581, Direct-Fit, UV & Chemical-Resistant

FOREBEN Almond Lid Assembly for Pentair 178581 is an aftermarket 21-inch replacement cover that restores a secure, leak-free housing for Clean & Clear Plus 420 and Quad D.E. 80 cartridge filters.

When a cracked or warped filter lid compromises your pool’s circulation, replacing the cover is faster and cheaper than swapping the whole tank. This FOREBEN almond-colored polypropylene lid assembly is built to OEM-style dimensions for direct fit on Pentair Clean & Clear Plus 420 (model 160301, manufactured after Nov 1998) and Quad D.E. 80 filters. The part arrives pre-assembled for a straightforward, mostly tool-free swap so you can get your filtration system back online quickly.

Will this lid fit my Pentair Clean & Clear Plus 420 or Quad D.E. 80 filter?

Yes, the FOREBEN assembly is designed to match the Pentair 178581 replacement profile and works with Clean & Clear Plus 420 and Quad D.E. 80 units produced after November 1998. It follows OE-style dimensions so the sealing surfaces and fastener locations align for a reliable install. Note that it is an aftermarket replacement, not an original Pentair factory part.

• Compatible with Pentair Clean & Clear Plus 420 (model 160301) made after Nov 1998
• Fits Quad D.E. 80 pool and spa cartridge filters
• Matches Pentair 178581 replacement lid dimensions
• Aftermarket part — not an OEM branded Pentair item

How durable is the FOREBEN almond lid in outdoor pool conditions?

The lid is molded from high-quality polypropylene engineered to resist sun, chemical exposure, and temperature swings commonly found around pools. That composition reduces the risk of brittleness, fading, and cracking compared with lower-grade plastics. It’s built to withstand repeated installs and typical pool chemical environments when used as directed.

• UV-resistant material minimizes sun damage and color fade
• Chemical-resistant polymer tolerates standard pool sanitizers
• Engineered to resist cracking from thermal cycling
• Reinforced sealing surface helps prevent leaks

Is installation difficult and what comes in the kit?

The FOREBEN cover arrives pre-assembled or ready for a simple tool-free replacement in most setups, so you can swap it in minutes. The design aligns with existing screw and clamp points on the filter housing, removing the need to modify the tank or buy extra parts. If you do need guidance, FOREBEN offers technical support and a 36-month warranty for peace of mind.

• Pre-assembled housing cover for quick replacement
• Direct-fit design uses existing fasteners and clamps
• Technical support and 36-month limited warranty available
• Step-by-step help available from FOREBEN if needed

What problems does replacing the lid solve?

Swapping a damaged lid restores the tank’s structural integrity and the filter’s sealing surface, eliminating leaks and preventing air intake that reduces pump performance. A secure cover also reduces the risk of loose clamps or sudden pressure loss during operation. This single replacement typically saves time and money versus full-housing replacement.

• Seals cracked or warped covers to stop leaks
• Prevents air pockets and improves filtration efficiency
• Restores correct clamp and fastener engagement
• Extends the service life of existing filter components

Who is this for: Pool owners, service technicians, and maintenance pros who need an affordable, durable lid replacement for Pentair Clean & Clear Plus 420 and Quad D.E. 80 systems. Choose this FOREBEN almond lid assembly if you want an OE-dimension aftermarket cover that installs quickly, resists outdoor pool conditions, and comes with technical support and a 36-month warranty.