Kripsol Koral / Kapri pre-filter cover screws (x2) - RKS 010.A - 500100010002

Kripsol Koral / Kapri pre-filter cover screws (x2) – RKS 010.A

This is the genuine Kripsol pair of hinged cover screws (vis de couvercle) for the pre-filter (PPE) housing on the Koral and Mini Kapri pool pump range. They are the fasteners that clamp the transparent polycarbonate lid down onto the strainer pot, creating the seal needed for the pump to hold prime and operate under pressure.

What these cover screws do in the Koral / Kapri

The two wing screws thread into the pre-filter housing and bear down on the lid to compress the cover O-ring against the housing rim. Without firm, undamaged screws, the lid cannot generate enough clamping force to keep that seal airtight. A loose or broken screw lets air ingress at the lid, causing the pump to lose prime and cavitate. Tighten them finger-tight after every basket inspection — no tools required for routine closure.

Which Koral / Kapri models they fit

These screws are confirmed for the Koral (KS / KSE series) and Mini Kapri pump lines, both of which use the same hinged cover-screw design on the pre-filter lid. The Koral KSE / KS range is also sold under the Hayward EFLO branding in certain markets, so if your pump carries that label, these screws apply directly. Always cross-reference the RKS 010.A part reference on your pump’s exploded diagram before ordering.

Signs they need replacing

Inspect the screws if the pump struggles to re-prime after basket cleaning, or if you can hear air being sucked in at the lid joint. Physical signs include a cracked or stripped thread on the screw shank, a hinge pin that no longer holds the screw upright for easy engagement, or a wing head that has become too brittle to tighten by hand. Because they are exposed to UV and pool chemicals continuously, plastic fatigue is the typical failure mode rather than sudden breakage.

How to install them

Lift the old screws out of their hinge brackets on the pre-filter housing — no tools needed for removal. Drop the new screws into the hinge slots, ensuring the pivot pin seats fully. Refit the lid, swing both screws over the lid rim, and tighten finger-tight in a cross pattern to compress the O-ring evenly. Run the pump briefly and check the lid joint for bubbles or weeping before returning the system to normal operation.