Waterway 1/2" On/Off valve for garden hose

This drainage valve, manufactured by Waterway, has a 1/2-inch female socket for the drainage spa on the spa side, and a thread for a garden hose adapter.

A screw-on cap covers the exit when it's not in use.

You can also connect this valve to 3/4-inch pipe via an adaptor.

Dimensions
Inside diameter pipe connection : 21 mm, for 1/2-inch pipe
Length : 107 mm
External diameter of the threaded exit : 26 mm

Waterway part numbers
Complete valve with cap : 400-2060
Adapter - 1⁄2" S x Male Garden Hose : 413-4400
Shut-Off Valve : 872-0004
Gasket : 806-0100
Drain Cap - 1⁄2" NHR : 519-0231