Call Us Now!

RM4000-5 PRJ100E Pump and RM1500-2 Valve

RM4000-5 PRJ100E Pump and RM1500-2 Valve

The RainPro® RM4000-5 with RM1500-2 valve is a 25mm system with no pressure loss on the Mains supply, and is designed for speed of installation - The Rain Mains device has no cables, no float, no solenoid, no electronic controls. The simplicity of this system has the added benefit of making it very affordable. The RM4000-5 stops flow of mains supply while rain water is being pumped to help conserve water. Refer to the table below to choose the pump sizing according to the house size and number of bathrooms. This system is not recommended for suction lift, use the RM5000-4 submersible version for underground tanks.


CODE 22825
MODEL RM4000-5 with PRJ80E Pump and RM1500-2 Valve
AMPS 4.5 P1 (kW) 0.90
P2 (kW) 0.74 MAX FLOW (L/MIN) 75
MAX HEAD (M) 48 SIZE LxWxH (MM) 400x206x530
HOUSE SIZE & BATHROOMS Large | 3-4 Bathrooms

Features & Benefits

Rains to Mains change over system allows mains water to flow if tank water is unavailable, and restricts mains flow if tank water is sufficient
Mains flow up to 100L/Min
Valveset is 100% hydraulic – no electronics
Watermark certified, includes dual check valve on mains
Reliable, efficient power-saving performance
Automatic pressure controller giving consistent pressure supply, automatically checks for water every 24 hours after a run dry event
Run dry protection and thermal overload protection for the pump
Tested to AS/NZS4020 for potable water


High quality European Made pressure pump
Supplied with RM1500-2 Changeover valve
Stainless-steel casing and shaft
Carbon/ceramic mechanical seal for reliability
Quick plug pressure controller connection
Ingress Protection IP44
Insulation Class F


Domestic toilet & laundry
Small house / cabin / granny flat (1 bathroom)
Small commercial / industrial*
Garden irrigation*
Toilet blocks (up to 6 fixtures)*
Construction / mine site offices*

*Check specifications required

Having difficulty finding the right product?

Call our friendly team on 1800 807 604 for assistance


Scroll to Top