






💧 Keep your hot water flowing flawlessly with Twinkle Star’s leak-proof isolation kit!
The Twinkle Star 3/4 Inch IPS Isolator Tankless Water Heater Service Valve Kit features a full port ball valve and integrated drain valve, all constructed from lead-free heavy-duty brass. Certified for safety and compatibility, it fits most U.S. residential and commercial tankless water heaters, ensuring easy maintenance and reliable leak-free operation.









| ASIN | B085Q8DL8B |
| Best Sellers Rank | #545,245 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,368 in Water Heater Replacement Parts |
| Brand Name | Twinkle Star |
| Color | Blue/Red |
| Customer Reviews | 4.6 4.6 out of 5 stars (894) |
| Heat Output | 500 Watts |
| Is Electric | No |
| Item Dimensions W x H | 7.2"W x 4"H |
| Item Weight | 1.83 Kilograms |
| Manufacturer | Twinkle Star |
| Material Type | Brass |
| Model Number | 49215648563517 |
| Mount Type | Wall |
| Power Source | Gas Powered |
| Style Name | Indoor Installation |
| Unit Count | 1.0 Count |
| Wattage | 500 watts |
F**N
Easy install and great price. A must have for tankless water heaters!
The isolation valve kit is absolutely necessary in order to properly flush the unit of scale and buildup on an annual basis. I purchased a home that was retrofitted with a tankless water heater. The installation was horrendous with the hot water supply installed on the right side and cold water on left, the TPR located in the wrong place and was unable to be tested because of its location, exposed electrical conductors that had brittle and failing insulation from UV damage and no isolation valves or hookups to properly flush the unit. The Twinkle Star valve kit solved this issue and appears to be of very good quality and works flawlessly.
B**N
Great kit
Great kit for installing your tankless water heater. Most require a certain amount of metal pipe prior to your cpvc or pex. These passed code in delaware. These have the threading & valves for descaling to keep your water heater running efficiently.
M**R
Great quality
Why did you pick this product vs others?: We left the product!!!! Great quality affordable price
0**O
Good Value
If you spend the money for a tankless water heater, you must install these valves and clean your unit once a year. Unless you have really hard water, then more often. They installed easily enough. They will make it much easier to clean my tankless water heater regularly.
K**N
Quality product and looks cool too!
I installed a new Rannai Tankless water heater. I used these for the isolation valves. Keep an eye in the little flat rubber washers in the unions though. One popped out when I removed it to make a pipe adjustment. I didn’t see it pop out but when I tried to reinstall it, I searched for a while but finally found it! I have a little sheet rock repair and sweat a few copper lines for the PRV, but was happy with the fast delivery, great quality and price.
M**E
Works great!
This install kit is a must have when installing a tankless water heater. Good quality parts. This kit made my installation quick and painless. The extra contact points will make flushing the unit very quick and simple as well. I highly recommend this kit.
D**B
Saves $
Saves a small fortune compared to having a plumber flush your system. Easy to use.
L**H
Clarification
I said that it is easy to install, because the installation includes only obvious connectivity with standard piping and electrical wires. Replacement would be an easy DIY project. But for the first installation or replacement to the tank heater, you still need to hire plumber and electrician to correctly bring needed water and power lines
Trustpilot
3 days ago
3 weeks ago