Diaphragm Pump 3GPM 11.36 L/min 3-Chamber Water Pump Pressure Switch
Not satisfied? Return it within 14 days for a full product refund. Return shipping applies for change-of-mind returns. View policy
Say Goodbye to Low Water Pressure
Upgrade to our 3-chamber water pump delivering a high flow rate of 3.0 GPM (11.36 L/min) at a steady 50 PSI. It's designed to meet all your daily water needs efficiently and reliably, saving you valuable time.
Automatic Pressure Switch
Customize your water pressure with an adjustable range from 40 to 100 PSI. The on-demand pressure switch automatically starts the pump when you open the faucet and stops it when you close it. Tested over 200,000 times for durability, it's built to last.
Ultra-Quiet Operation
Our diaphragm pump features a pure copper motor for smooth and quiet performance. The plastic pump body and noise-reducing base effectively minimize sound, so it won't disrupt your work or sleep.
Security You Can Trust
Certified by CE and ROHS. This water pump includes overheat and overload protection to extend its lifespan. Plus, it supports dry running and has a built-in check valve bypass switch to ensure uninterrupted water supply even if the pump or check valve fails.
Standard Size, Easy Replacement
Our diaphragm pump is equipped with standard 1/2" MNPT inlet and outlet, replacing your existing pump is a breeze. Ideal for use in RVs, boats, campers, food trucks, and more, it brings convenience to your lifestyle.
📦 Shipping & Delivery
Free Shipping on orders $500+. For orders under $500, a flat postage fee applies based on order weight (from $4.95).
Orders are dispatched within 1–3 business days of payment confirmation. You will receive a tracking email once dispatched.
Standard delivery: 3–7 business days (metro). Regional/WA/NT may take slightly longer.
🔁 Returns & Refunds
We offer 14-day returns on all items.
To be eligible, items must be returned in original, unused condition with all original packaging.
To start a return: email hello@myhappygift.com.au with your order number.
Refunds are processed within 5–10 business days of receiving the returned item.
🛡️ Warranty
All products include a 12-month manufacturer's warranty.
Covers manufacturing defects and faults under normal use conditions.
Does not cover accidental damage, misuse, or normal wear and tear.
To make a warranty claim, email hello@myhappygift.com.au with your order number and photos of the fault.
❓ FAQs
How long does delivery take?
Orders dispatch in 1–3 business days. Standard delivery 3–7 business days.
Do you ship to all Australian states?
Yes, we ship Australia wide including WA, NT, and all regional areas.
How do I track my order?
A tracking link is emailed once your order is dispatched.
How do I contact support?
Email hello@myhappygift.com.au or call (03) 9961 6069.
Mon–Sat, 9:00 AM – 10:00 PM AEST. We respond within 24 hours.
Are your products covered by warranty?
Yes, every product includes a 12-month manufacturer's warranty.
Curated for Quality
Every product hand-selected to meet our quality standards before it reaches your home
Fast Australian Dispatch
Orders dispatched within 1–3 business days from our Australian warehouses
Responsive Local Support
Australian-based team available Mon–Sat, 9am–10pm AEST. Reply within 24 hours
Backed by Warranty
Every product includes a 12-month manufacturer's warranty — shop with confidence
