
Not sure what it is but I bought 2 of these and both times had problems with the T-valve on both installations. I had to add a lot of teflon tape to create a good seal around the fittings and prevent leakage. The problem with this is that many flush tank fittings are made of plastic. It is metal and will destroy plastic threads or fittings if overtightened or installed incorrectly. I bought a completely different vaporizer and had no problems compared to this one. [Update: I have since purchased 4 more of this particular item. Especially because of the coiled hose that allows it to stay off the ground. If I had problems with my previous two purchases, the problem may have been with the toilet faucet. 4 that I recently installed for my family's house, simply installed. I'm giving an extra star here.]

COSYLAND 10'' High Pressure Rainfall Shower Head Combo With 11'' Extension Arm & 79" Hose - 9 Settings Handheld Stainless Steel Dual Heads, Chrome
39 Review

Adjustable Handheld Shower Bracket With Brushed Brass/Gold Finish - No Drill Installation Required
44 Review

Complete Matte Black Shower System With Handheld - Cobbe Shower Faucet Set Including 12 Inches Fixtures For Bathroom, Rough-In Valve Body And Trim Included
45 Review

Gabrylly Brushed Gold Wall Mounted Slide Bar Shower System With High Pressure 10" Rain Shower Head, 5-Setting Handheld Shower Set, And Valve Trim Diverter.
42 Review

Stylish And Functional: HGN Matte Black Kitchen Faucet With Pull Down Sprayer And Stainless Steel Design
40 Review

Matte Black Stainless Steel Glass Rinser For Kitchen Sinks - HGN-GR-002B Glass Cup Washer Cleaner And Kitchen Sink Accessory
38 Review

Upgrade Your Kitchen With Soosi Touchless Motion Sensor Faucet - 3-Function With Pull Down Sprayer And Spot Free Oil Rubbed Bronze Finish
31 Review

Upgrade Your Kitchen With Ufaucet'S Modern Brushed Nickel Single Lever Sink Faucet With Pull Out Sprayer
31 Review