How do u know to use the 300 or 310 they both look the same for water valve Could not find any numbers on toilet JPM

It appears that this replacement water valve is good for the 300, 310, and the 320. I just looked up the domestic 310 parts on google and got to the domestic parts list. Went from there. Good luck. Oh and it's easy to replace, even in place. The prongs are stiff but will release eventually.

With this new part I do not have any leaks but a few times when you go flush I get no water. I have to turn the water on& off at the sink to flush...?

Mine did the same thing. When I installed the valve I didn't put the screw in to hold the valve in place. After I put the screw in I had no more problems. I get water in the bowl with every flush.

What is the size of the thread?

There is no thread size for this valve. The supply line is clamped on. This is a valve for the toilet.

I replaced mine due to a freeze issue and the new one will not shut off. Has there been problems with the end of the push in valve sticking?

My valve had an issue sticking open where I could not stop the water flow. Had to remove valve, sprayed WD-40 inside valve, valve doesn’t stick any longer.

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DOMETIC 385311641 Sealand Water Valve Kit, white

DOMETIC 385311641 Sealand Water Valve Kit, white

Product ID: 260071819

Details

Brand
DOMETIC
Exterior finish
painted
Inlet connection size
0.5 Inches
Item dimensions L x W x H
15.5 x 14 x
Material
Metal Plastic

⚙️Precision 0.5-inch compression fittings

🛠️DIY-friendly quick install under 10 mins

🇺🇸Proudly made in the USA

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KD 22.34

Duties & taxes included

In stock

Sold byAmazon KUWAITDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚐 Upgrade your RV’s flow with hassle-free precision!

QUICK EASY INSTALLATION - Get your RV toilet running smoothly in under 10 minutes with just a screwdriver.
COMPACT LIGHTWEIGHT DESIGN - Space-saving and portable—ideal for on-the-go RV maintenance.
DURABLE ABS PLASTIC STAINLESS MESH - Built to last with premium materials that resist wear and leaks.
COMPLETE KIT WITH EVERYTHING INCLUDED - Valve, hose clamp, fasteners & clear instructions—no extra trips to the hardware store.
PERFECT FIT FOR DOMETIC 300 310 320 SERIES - Seamless compatibility means zero guesswork and instant leak fix.

The DOMETIC 385311641 Sealand Water Valve Kit is a compact, durable replacement valve designed specifically for Dometic 300, 310, and 320 series pedal-flush toilets. Featuring 0.5-inch compression fittings, it includes all necessary components—valve, hose clamp, fasteners, and instructions—for a quick, under-10-minute installation. Made in the USA with high-quality ABS plastic and stainless mesh filters, this kit ensures a reliable, leak-free performance that keeps your RV sanitation system running smoothly.

Specifications

ASIN	B004SNJPV0
ASIN	B004SNJPV0
Batteries	1 Unknown batteries required.
Brand Name	DOMETIC
Connector Type	Compression
Country of Publication	USA
Country of origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (1,985)
Customer reviews	4.6 4.6 out of 5 stars (1,985)
Date First Available	21 September 2023
Exterior Finish	painted
Global Trade Identification Number	00713814072827
Included Components	Dometic Sanitation 385311641 Water Valve Kit F300/F310
Inlet Connection Size	0.5 Inches
Inlet Connection Type	Compression
Is Discontinued By Manufacturer	No
Item Dimensions	15.5 x 14 x 3.2 centimeters
Item Type Name	Dometic Sanitation 385311641 Water Valve Kit F300/F310
Item Weight	27 g
Item model number	385311641
Manufacturer	Dometic
Manufacturer	Dometic
Manufacturer Part Number	385311641
Material Type	Metal Plastic
Maximum Pressure	1200 Pound per Square Inch
Model Number	385311641
Number of Pieces	4
Number of Ports	2
Outlet Connection Size	0.5 Inches
Outlet Connection Type	Compression
Product Dimensions	15.54 x 13.97 x 3.18 cm; 27.22 g
Set Name	Dometic 385311641 Sealand Water Valve Kit
Size	Small
Specification Met	NSF, WRAS
Thread Size	0.5 inches
Thread Type	NPT
UPC	713814072827
Unit Count	1 Count
Valve Type	Toilet Water Valve

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