Description Sanistream Hot Tub Filter 40508 This is the filter only. One of the most widely used filters in lots of major brands please see below Sunrise Spas Premium Leisure EVO range Elite Spas Dynasty Spas Garden Leisure Arctic Spas Nordic Spas Blue Whale Spas Please look at the photos and measurements closely and if you are in any doubt please call us for assistance in choosing your filter Length: 14″ (350mm) Top Hole: Closed crescent handle Bottom Style: 1.77″ (45mm) hole, female SAE coarse thread Media Area: 50 sqft Diameter: 130mm 5″ The filter is not a traditional base, rather it has what can only be described as a mounted internal thread – an approximate thread diameter of 40mm.
