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Fluidmaster 385 Replacement Cap Assembly for 400A Fill Valves.

4.8 out of 5 stars 5 customer reviews

List Price: $4.77
Price: $3.58 & FREE Shipping on orders over $49. Details
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  • Enter your model number above to make sure this fits.
  • Manufactured in china
  • Easy to use
  • Highly durable
  • Includes seal
  • Easily installs onto fill valve
  • Fixes leaks at cap
  • 1 year warranty
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16 new from $2.77

A Full Selection of Hydraulic, Pneumatic & Plumbing Products
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$3.58 Add-on Item & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Fluidmaster 385 Replacement Cap Assembly for 400A Fill Valves.
  • +
  • Fluidmaster 242 Replacement Part
  • +
  • Fluidmaster 400CR Toilet Fill Valve and Flapper Repair Kit
Total price: $18.25
Buy the selected items together

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Product Information

Technical Details

Part Number 385
Item Weight 1.6 ounces
Product Dimensions 1.5 x 3.8 x 4.8 inches
Origin USA
California residents Click here for Proposition 65 warning
Item model number 385
Size 4.75 x 3.75 x 1.47 inches
Color Black
Item Package Quantity 1
Batteries Required? No
Warranty Description 1 year warranty against manufacturer defect

Additional Information

ASIN B0018SC3SA
Customer Reviews
4.8 out of 5 stars 5 customer reviews

4.8 out of 5 stars
Best Sellers Rank #161,509 in Home Improvements (See top 100)
#195 in Home Improvement > Rough Plumbing > Toilet Parts > Toilet Flush Valves
#9,744 in Home Improvement > Contractor Supply
#18,286 in Home Improvement > Kitchen & Bath Fixtures
Shipping Weight 3.2 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available May 2, 2008

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Top Customer Reviews

Verified Purchase
Perfect fix for my slow filling tank. If the water in your tank suddenly stops filling or fills very slowly, then this should fix it. Be careful to order the right cap - there are two - 350 (old) and 385 (new). Find the one that holds your riser 'stick' correctly. You can buy just the rubber seal, but for a little more I just bought the entire cap. I had a problem twisting the old cap off because the entire fill valve assembly wanted to rotate along with the cap. But I finally figured out that if you hold the little nub for the rubber hose, that sticks out the side, then you have enough leverage to twist the cap off. Also note the relationship of the arm on the cap to the rubber hose nub before removal so that you know at what angle to align the new cap.
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Verified Purchase
The cap assembly is easy to replace and makes the fill valve like new. I did the job just fine
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Verified Purchase
Worked. Not much else to say.
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Verified Purchase
Nice easy fix for a leaky valve.
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Verified Purchase
Easy replacement - lift lid, a quarter twist and the old one comes off and this one goes in.
However, before you order, make sure that the little white palstic gasket under the old one is not cracked. Mine was and this only work for two flushes before I realized I needed to replace the whole thing.
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