Suitable for: Easily replace 385311658 RV toilet seal and 385311652 RV toilet seal, perfect for do-metic 300, 310, 320 RV toilets, perfect for RV and travel trailer toilets. Note: Does not fit 210, 510 and other models not mentioned. Easy to Install: Replacing 385311652 RV toilet seal kit and 385311658 RV toilet flush seal is very simple. Just remove the old RV toilet seal and flush seal after shutting off the water, clean the rim of the RV toilet and replace with a new one. Check for leaks and you are done High Quality RV Toilet Seal Kit: 385311652 RV Toilet Seal and 385311658 RV Toilet Flush Seal replacements are made of high quality composite materials, fully tested by the manufacturer for high durability, strong sealing and long life. Easily solve the problem of bad smell and water leakage, make your travel worry-free RV Toilet Seal Kit: This kit replaces one 385311652 RV toilet seal, one 385311658 RV toilet flush seal and a set of fixing screws. 385311658 RV Toilet Flush Seal Dimensions: 4 inches outer diameter; 2.75 inches inner diameter; 0.28 inches thick Colour:Photo Color Material:plastic Package Contents: 1 set of toilet sealed kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.