Speck Pumps 2920241220 O-Ring-Union 50 x 3 mm.
Features:. This is an O-Ring that is used on the Muskin ME Series pump.. Also used on the Speck Model E-91, ES-90, A-91, and E45 pumps.. It is used to help connect the union assembly with the port on the strainer.. Size - 50 x 3 in.