HQRP - Flush ball seal kit for Dometic 300 310 320 RV toilet - replaces 385311658 - Black
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About this product
This flush ball seal kit replaces a worn toilet seal that can cause leaks, slow water loss, or odors in your bathroom. Compatible with Dometic 300 / 310 / 320 series gravity-flush RV toilets and replacement for Dometic part number 385311658, it is designed to match the original sealing surface for a secure fit. Use it during routine maintenance in an RV, motorhome, camper, trailer, or boat toilet to restore reliable sealing at the flush ball. The seal measures 4 in outer diameter and 2.75 in inner diameter, and installation is straightforward: remove the old seal, press the new one in until fully seated, and keep the marked side facing up for proper orientation. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.
Features
Compatibility and replacement part
Toilet fit: Compatible with Dometic 300, 310, 320 series gravity-flush RV toilets; replacement for part number 385311658; helps restore a tight seal to reduce water seepage and odor escape at the flush ball
Seal dimensions
Sizing details: Outer diameter 4 in; inner diameter 2.75 in; designed to match the original flush ball seal profile for proper seating and smooth flush operation
Quick installation
Simple swap: Pop out the old seal and press the new seal into place; ensure it is fully seated with the marked side facing up; reduces downtime in RV, boat, motorhome, camper, trailer bathrooms
Durable material
High quality material: Built to handle regular water exposure and repeated flushing; supports consistent bowl sealing performance over time
What you receive
Flush ball seal kit: Includes one replacement flush ball seal; may arrive in retail or OEM-style packaging; maintenance accessory to keep your toilet sealing properly between trips
Specifications
- ColorBlack
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This flush ball seal kit replaces a worn toilet seal that can cause leaks, slow water loss, or odors in your bathroom. Compatible with Dometic 300 / 310 / 320 series gravity-flush RV toilets and replacement for Dometic part number 385311658, it is designed to match the original sealing surface for a secure fit. Use it during routine maintenance in an RV, motorhome, camper, trailer, or boat toilet to restore reliable sealing at the flush ball. The seal measures 4 in outer diameter and 2.75 in inner diameter, and installation is straightforward: remove the old seal, press the new one in until fully seated, and keep the marked side facing up for proper orientation. Disclaimer: This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. All brand names and logos are registered trademarks of their respective owners. Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility.
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Specs
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