Hayward Clamp and Seal Kit for Cartridge & D.E. Filters — Black OEM Replacement for Swim-Clear/Pro Grid (post-2007)

If your Hayward Swim-Clear cartridge filter or Pro Grid D.E. filter (models made after 2007) shows signs of leaking or a loose lid connection, this DEX2421JKIT supplies the specific clamp and sealing parts needed to re-establish a secure seal. The kit provides direct-fit components meant to match Hayward tolerances so you can avoid jury-rigging hardware or buying a full replacement housing.

What exactly comes in the DEX2421JKIT and why it matters?

The kit includes the clamp assembly and the elastomeric seals required to clamp the filter tank or lid in place and prevent water loss. Using the correct, OEM-matched pieces helps restore proper alignment and compression where generic parts might fail.

• Clamp assembly engineered for Hayward filter housings
• Replacement O-rings/seals sized to original specifications
• Fasteners or retention hardware as required for secure installation

How do I install the Hayward clamp and seal kit?

Installation is straightforward for anyone comfortable with basic pool equipment maintenance: drain the filter, remove the old clamp and seals, seat the new seals in the groove, and torque the clamp evenly to manufacturer guidance. No specialty tools are normally needed beyond a screwdriver or wrench and basic safety steps.

• Turn off pump and relieve pressure before starting
• Remove filter lid or housing and old seals carefully
• Position new seals uniformly and tighten clamp evenly to avoid misalignment

Which Hayward filters are compatible with this kit?

DEX2421JKIT is made to fit Hayward Swim-Clear cartridge filters and Hayward Pro Grid D.E. filters produced after 2007. Confirm fit by comparing part numbers and visual features before purchase to ensure correct match with your model.

• Compatible with Swim-Clear cartridge filter models post-2007
• Compatible with Pro Grid D.E. filter models post-2007
• Not intended for older pre-2007 housings or unrelated brands

How will replacing the clamp and seals help my pool system?

Installing fresh seals and a properly sized clamp restores the compression needed to keep the tank or lid tight under pressure. This reduces water and pressure loss, helps maintain filtration performance, and can extend the life of the filter housing by preventing stress on older or damaged interfaces.

• Improves pressure integrity and reduces leakage risk
• Helps maintain consistent filtration without hardware gaps
• Spares the need for immediate full-housing replacement when parts wear

Who is this for?

If you own a Hayward Swim-Clear cartridge filter or a Pro Grid D.E. filter manufactured after 2007 and you’re seeing leaks, loose lids, or worn sealing surfaces, the DEX2421JKIT is a pragmatic repair kit. It’s aimed at pool owners, service technicians, and maintenance professionals who prefer to replace only the worn components rather than the entire filter assembly. Always confirm model compatibility before ordering and follow Hayward’s safety and installation guidelines during replacement.