Grundfos Amazon 2.0 Bar Twin Impeller Positive Head Shower Pump - STP-2.0 B
35 reviews
£423.36(Inc. VAT)
8 Days From Order
FREE DELIVERY
Plumbworld has the lowest price for this product!
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Description
Key Features
2.0 bar pump rating — Boosts shower performance on a suitable gravity-fed system
Twin impeller design — Pumps both hot and cold water supplies
Positive head operation — Requires sufficient natural water flow to activate the pump
Low-noise motor — Designed to keep operating noise to a minimum
Continuously rated motor — Supports sustained operation while the shower is in use
Brass construction — Provides strength and durability
WRAS approved and CE marked — Offers added reassurance in product quality
5-year warranty — Provides confidence in your purchase
What’s Included
1 x Grundfos Amazon 2.0 Bar Twin Impeller Positive Head Shower Pump — STP-2.0 B
Please note: this pump is for suitable gravity-fed hot and cold water systems. It requires sufficient natural flow and is not suitable for direct connection to the mains supply.
Give Your Shower a Performance Boost
The Grundfos Amazon is designed to improve water delivery where an existing gravity-fed shower feels weak. Its twin impellers boost both the hot and cold supplies, helping your mixer shower deliver a more satisfying flow.
For anyone comparing shower pumps, the 2.0 bar model offers a practical option when the system is suitable for positive head operation.
Positive Head for Gravity-Fed Systems
Positive head pumps rely on water flowing naturally to the shower before the pump starts. The cold-water storage tank needs to be positioned above the shower outlet, with enough height and natural flow to meet the pump’s installation requirements.
When choosing positive head shower pumps with twin impellers, have your installer confirm the available head and flow. This model is intended for gravity-fed supplies rather than mains-fed or negative head installations.
Boost Both Hot and Cold Water
The twin impeller arrangement pumps the two supplies separately before they reach your shower mixer. This makes twin impeller shower pumps for hot and cold water a useful choice where both sides of the gravity-fed system need boosting.
The pump’s low-noise motor is designed to reduce disruption while you shower. Its continuously rated design also supports sustained use, making it practical for households where showers are used one after another.
Durable Brass Construction
The brass construction provides a robust foundation for everyday operation. WRAS approval, CE marking, and a 5-year warranty offer additional reassurance when choosing from our Grundfos shower pumps.
Correct positioning and installation are essential to performance, so your installer should check the water supplies, pipework, and shower requirements before fitting.
Buy Your Grundfos Amazon Shower Pump Today
Order the Grundfos Amazon 2.0 Bar Twin Impeller Positive Head Shower Pump now and enjoy stronger water delivery from your compatible gravity-fed shower.
Specifications
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Technical
Grundfos Amazon 2.0 Bar Twin Impeller Positive Head Shower Pump - STP-2.0 B – Technical Specifications
I replaced a 3bar pump that had started sounding even noisier than normal. This unit is a pleasure to own, its quiet and nearly as powerful as the 3 bar it replaced. Highly recommend this unit, and with the 5 year warranty it even puts your mind at ease.
5/ 5
Wayne
rated this
5/5
★★★★★
very nice make and solid build. swapped this for a different type of pump that was leaking and being very noisy. its worth paying a little extra, pump is very quiet and works great. delivery was very fast and swift .
5/ 5
Carla
rated this
5/5
★★★★★
Speedy delivery and easy to install. Highly recommended.
5/ 5
Scott Stevens
rated this
5/5
★★★★★
Great service, very prompt and efficient.
Thanks
5/ 5
Franklin
rated this
5/5
★★★★★
Plumber said this is one of the best pumps to buy. But it wasn't the one we needed so have sent it back
5/ 5
Neville
rated this
5/5
★★★★★
Excellent supplier and product .
Prompt delivery ...............
5/ 5
Jim
rated this
5/5
★★★★★
Very impressed with the superb service supplied by Plumbworld. Everything was very smooth and easy to do and the delivery was fast.
The pump itself replaced an older grunfos wasp pump which I'd had for at least 10 years. This pump is a lot quieter than the previous one, so much so that I had to check it was on as I didn't hear it!! It allows both showers in the house to be used at the same time with no apparent drop in pressure. Grundfos are well established and I know I could have got a cheaper pump but you pay for what you get and in my humble opinion Grundfos is a reliable make. Overall extremely pleased with the purchase and the professional way that Plumbworld dealt with the whole process from start to finish. Would definitely highly recommend.
5/ 5
Ansy Meaden
rated this
5/5
★★★★★
I ordered this pump to replace an old Aura45 that was in the house when we moved in 8 years ago it was very loud heard all over the house. What a difference really quiet when running should keep others sleeping on those early starts. Solid brass finish worth the bit extra and 5 year cover.
I fitted full bore valves as nothing there before for maintenance, bit of pipe repositioning needed as flex hoses fairly rigid.
Really impressed with the service from Plumbworld called them up to check manufacturer part number, as was given this from Grundfos ordered over the phone and arrived next day as promised via DHL.
5/ 5
kANAPATHIPILLAI Sivanandan
rated this
5/5
★★★★★
Good product at competitive price.order and delivery was very smooth.excellent product and sale advise.
I will use again and recommend anyone.
5/ 5
Robin
rated this
5/5
★★★★★
My 16 year old ShowerForce EasyBoost pump started to leak. I'm very pleased I chose to replace it with a Grundfos Watermill Amazon 2.0 Bar Twin Positive Head STP-2.0B brass pump. Plumbworld, kept me informed by email about delivery and the pump was very well packed. The pump installation was straight forward but I redesigned the 22mm pipework in my airing cupboard to allow for a possible future feed to a second shower room; this required careful design. I fitted Pegler full bore lever valves to the tops of each of the 4 supplied flexible tails to make isolation for periodic cleaning of the pump filters a simple matter. I placed the pump on a 300mm x 300mm x 25mm granite paving slab and insulated this from the wooden floor boards with strips of "P" profile 3-5mm gap Stormguard EDPM door/window seal. The bathroom is next to the airing cupboard and the shower head is 330mm below the bottom of the cold water tank. With the pump fitted, but switched off, flow through the Pegler Mimo thermostatic mixer valve (min. 0.1 Bar) and Groher eco (min. 1 Bar input and restricted 9 l/min flow rate) shower head was approx. 0.7 litres per minute. When the pump is switched on and the shower valve is opened, the pump starts fine and delivers approx. 8 l/m. The noise of the old pump was much louder than the sound of water from the shower head but the new Grundfos pump cannot be heard over the sound of the shower water. The noise from the pump in an adjacent bedroom is no longer intrusive and would be unlikely to disturb a sleeping child.
