Generic Pool Heater Drain Plug Kit 006721F for RP2100 Models — 6-Pack Plastic Plugs with O-rings

This 6-piece 006721F drain plug kit is a direct-replacement plastic plug with O-ring designed specifically for RP2100 series pool heaters to restore leak-free drainage and reliable operation.

If your RP2100-series pool heater needs new drain plugs, this kit supplies six matched plastic plugs (part number 006721F) and O-rings so you can replace worn or missing components quickly. The plugs are molded to the original dimensions for an accurate fit with models including RP2100 digital 185-405, R185A, R265A, R335A, and R405A. Made from durable plastic with a resilient O-ring, the kit helps prevent drips and maintain steady water flow through the heater.

Will these drain plugs fit my RP2100 or related model?

Yes — the 006721F plugs are manufactured to match the factory dimensions used on the RP2100 family and several related models. They are intended as direct replacements, so installation is straightforward when the correct drain locations are identified.

• Compatible with RP2100 digital 185-405, R185A, R265A, R335A, R405A
• Original-size profile for proper seating and thread engagement
• Sold in a pack of six to cover multiple drain points or future needs

How do these plugs reduce leaks and help heater performance?

The plugs include an O-ring seal that compresses to block water pathways when tightened, cutting down on slow drips and seepage. By keeping connections watertight, the heater maintains proper water flow and temperature stability without unnecessary water loss.

• O-ring provides a tight seal against the housing to limit leakage
• Durable plastic resists corrosion and chemical wear from pool water
• Replacing degraded plugs restores original sealing capability

What materials and durability can I expect from this kit?

The kit uses a tested plastic formulation chosen to withstand the pool environment while remaining cost-effective. The plastic body resists rust and scales that can affect metal plugs, and the included O-rings are designed for repeated compression cycles during installation and removal.

• Hard, rugged plastic resists corrosion better than soft metals
• O-rings are sized for repeated tightening/removal without losing elasticity
• Pack of six offers parts for multiple drain points or spares for maintenance

How should I install and maintain these drain plugs?

Installation is simple: remove the old plug, clean the plug seat, fit the new O-ring, and hand-tighten the replacement plug to achieve a secure seal. Periodic checks and reseating after seasonal shutdowns will prolong their service life.

• Clean mating surface before installing new plug and O-ring
• Hand-tighten; avoid over-torquing which can deform the O-ring
• Inspect O-ring periodically and replace if cracked or flattened

Who is this for? Pool owners, service technicians, and maintenance teams working with RP2100-series or compatible pool heaters who need a reliable, low-cost replacement for worn drain plugs. The 6-piece 006721F kit is useful when multiple drains need attention or as a small parts inventory for routine heater servicing. If you require compatibility confirmation or have a quality concern, contact the seller for assistance or replacement options under the provided warranty.