Type of product: Union collar and sleeve Specification: 50mm S Most common size reference: "50mm" metric sleeve or tailpiece (this means industry standard 50mm pipe fits inside). The collar is what we refer to as what you would find on a standard pump with 1.5" union connections. This union is interchangeable with Waterway etc. to give you an idea. Overall outer dimensions approx: Max height: 56mm Max diameter: 74mm Internal diameter size: 50mm Commonly used with: 50mm rigid pipe and 50mm flexible rigid pipe. Used with Hydroair Pumps mainly but can interchange with other brands. Additional notes: Best to use a plumbing cleaner then pipe cement to assemble. Pipe work pushes inside this part at the female end. Comes complete with an o'ring
