![Apollo 1/2 in. Stainless Steel PEX-B Barb x 3/4 in. Female Pipe Thread x 18 in. Water Heater Connector APXCSST18 - The Home Depot Apollo 1/2 in. Stainless Steel PEX-B Barb x 3/4 in. Female Pipe Thread x 18 in. Water Heater Connector APXCSST18 - The Home Depot](https://images.thdstatic.com/productImages/e56e043d-8a08-43b9-bc5e-d1e91e0a6815/svn/apollo-water-heater-venting-parts-apxcsst18-31_600.jpg)
Apollo 1/2 in. Stainless Steel PEX-B Barb x 3/4 in. Female Pipe Thread x 18 in. Water Heater Connector APXCSST18 - The Home Depot
![Cash Acme 3/4 Inch Tank Booster Water Heater Thermostatic Mixing Valve with Temperature Gauge and Corrugated Hose, PEX Pipe, PE-RT, CPVC, Copper, 24643 - Amazon.com Cash Acme 3/4 Inch Tank Booster Water Heater Thermostatic Mixing Valve with Temperature Gauge and Corrugated Hose, PEX Pipe, PE-RT, CPVC, Copper, 24643 - Amazon.com](https://m.media-amazon.com/images/I/71tIwxWBm5L.jpg)
Cash Acme 3/4 Inch Tank Booster Water Heater Thermostatic Mixing Valve with Temperature Gauge and Corrugated Hose, PEX Pipe, PE-RT, CPVC, Copper, 24643 - Amazon.com
![SharkBite 3/4 Inch Ball Valve x 3/4 Inch FIP x 18 Inch Stainless Steel Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U3088FLEX18BVLF - SharkBite 3/4 Inch Ball Valve x 3/4 Inch FIP x 18 Inch Stainless Steel Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U3088FLEX18BVLF -](https://m.media-amazon.com/images/I/616QD9AQJVL.jpg)
SharkBite 3/4 Inch Ball Valve x 3/4 Inch FIP x 18 Inch Stainless Steel Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U3088FLEX18BVLF -
![Document Addresses Connecting Plastic Pipe to Tankless Water Heaters - Mechanical Hub | News, Product Reviews, Videos, and Resources for today's contractors. Document Addresses Connecting Plastic Pipe to Tankless Water Heaters - Mechanical Hub | News, Product Reviews, Videos, and Resources for today's contractors.](https://mechanical-hub.com/wp-content/uploads/2020/11/PPI-BCD-RecH-Photo-1-610x595.jpg)
Document Addresses Connecting Plastic Pipe to Tankless Water Heaters - Mechanical Hub | News, Product Reviews, Videos, and Resources for today's contractors.
![SharkBite 3/4" Ball Valve x 3/4" FIP x 18" Stainless Steel Corrugated Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, SS3088FLEX18BV - Amazon.com SharkBite 3/4" Ball Valve x 3/4" FIP x 18" Stainless Steel Corrugated Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, SS3088FLEX18BV - Amazon.com](https://m.media-amazon.com/images/I/718276XCMlL.jpg)
SharkBite 3/4" Ball Valve x 3/4" FIP x 18" Stainless Steel Corrugated Flexible Water Heater Connector, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, SS3088FLEX18BV - Amazon.com
![Looks like plumber used pex for relief valve. Is that okay? It's also installed into drain pan which I thought was not supposed to be done. : r/ Plumbing Looks like plumber used pex for relief valve. Is that okay? It's also installed into drain pan which I thought was not supposed to be done. : r/ Plumbing](https://preview.redd.it/looks-like-plumber-used-pex-for-relief-valve-is-that-okay-v0-0hoyna5h3kl81.jpg?width=640&crop=smart&auto=webp&s=186c0b33e970fe21c1f49e3c295177c3705a4b4b)
Looks like plumber used pex for relief valve. Is that okay? It's also installed into drain pan which I thought was not supposed to be done. : r/ Plumbing
![Tankless Water Heater with PEX Piping System. For our house size and region a tankless system water heater woul… | Diy plumbing, Pex plumbing, Radiant floor heating Tankless Water Heater with PEX Piping System. For our house size and region a tankless system water heater woul… | Diy plumbing, Pex plumbing, Radiant floor heating](https://i.pinimg.com/originals/59/4a/b5/594ab5fad5e40414a871a66525b9e3cb.jpg)
Tankless Water Heater with PEX Piping System. For our house size and region a tankless system water heater woul… | Diy plumbing, Pex plumbing, Radiant floor heating
![plumbing - What is causing these water heater pipes to rust/corrode? - Home Improvement Stack Exchange plumbing - What is causing these water heater pipes to rust/corrode? - Home Improvement Stack Exchange](https://i.stack.imgur.com/FsVf3.jpg)