Will B&B Molders Replacement RV Plastic Check Valve Fit Nautilus P1 RV Water Control Panel
Updated 10/30/2025 | Published 10/07/2025
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Question:
Will this fit / replace a Nautilus P1 city water inlet? Do you have installation instructions/video? Thank you. Mine is leaking.
asked by: Mike G
Expert Reply:
Hey Mike! I checked with our contact at B&B Molding and found that the Replacement RV Plastic Check Valve with Clip for B&B Molders City Water Inlet # BM46MR is the correct replacement for your B&B Nautilus # BM43GR. This is the same as the OEM part number 301-036-00017. You can find the instructions under the B&B repair file listed below.
https://www.bandbmolders.com/wp-content/uploads/2018/01/Nautilus-P1-Repair.pdf
(click to enlarge)
Product Page this Question was Asked From
Replacement RV Plastic Check Valve with Clip for B&B Molders City Water Inlet
- Accessories and Parts
- RV Water Inlets
- Check Valve
- B and B Molders
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Robin H.
10/30/2025
Hey Mike, did the replacement check valve fix the leak on your Nautilus P1 water inlet? Sharing how the repair went could really help others dealing with the same issue.