The Grundfos Amazon STP-4.0 B is a Positive head shower booster pump used to increase water pressure to a gravity fed hot water system. It's ideal for boosting water to single/multiple showers or whole house boosting where the outlets are below the cold water tank.

Brand Name	Grundfos
Colour	Brass
Material	Brass
Manufacturer Model No	96787471
Wear Type	N/A
Type	Shower Pump
Certifications Met	WRAS Approved
Country of Origin	N/A
Protects From	N/A
Waterproof	IPX2
Number of Pockets	N/A
Dimensions	(L)284 x (W)145 x (H)225mm
Electrical Rating	Continuous
Cable Length	1.5m
Voltage (V)	230
Power Input (W)	790
Fuse	10A
Closed Valve Pressure (bar)	4.1
Max. Flow rate (l/min)	50
Minimum Pipe Size	22mm
Features	Low noise design - quiet induction motor and minimal turbulence pump head, Continuously rated, Supplied with 22mm Stainless steel hoses, Fitted with long-life silicon carbide seals, Twin (STP) & Single (SSP) impellers, Regenerative impeller designed to overcome air pockets, Premium brass pump head and impeller