🔧 What this part is
Union, Praher, 2" Slip x 2" Male Pipe Thread, with O-Ring, part number 200-903. A union lets you disconnect a pump, heater or filter without cutting pipe.
Size as listed: 2"; connections: slip (solvent weld) and union.
✅ Check before you order
- Measure the part you are replacing – this one is listed as 2".
- The connections have to match: slip (solvent weld) and union.
- The number on the old part should read 200-903, or the maker’s equivalent.
- Not sure? Send us a photo of the old part and any number on it, and we will tell you whether this is the one.





