--- product_id: 191241250 title: "Finest-Filters Reverse Osmosis RO Unit with Booster Pump and DI Stage Pumped 50-100gpd (75gpd)" brand: "finest aquatics" price: "€ 379.27" currency: EUR in_stock: true reviews_count: 8 category: "Finest Aquatics" url: https://www.desertcart.hr/products/191241250-finest-filters-reverse-osmosis-ro-unit-with-booster-pump-di store_origin: HR region: Croatia --- # 75 gallons/day ultra-pure output Built-in booster pump for optimal pressure 4-stage filtration with DI resin Finest-Filters Reverse Osmosis RO Unit with Booster Pump and DI Stage Pumped 50-100gpd (75gpd) **Brand:** finest aquatics **Price:** € 379.27 **Availability:** ✅ In Stock ## Summary > 💧 Elevate your water game with precision purity and smart tech—because your workflow deserves nothing less. ## Quick Answers - **What is this?** Finest-Filters Reverse Osmosis RO Unit with Booster Pump and DI Stage Pumped 50-100gpd (75gpd) by finest aquatics - **How much does it cost?** € 379.27 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/191241250-finest-filters-reverse-osmosis-ro-unit-with-booster-pump-di) ## Best For - finest aquatics enthusiasts ## Why This Product - Trusted finest aquatics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Booster Pump:** Ensures optimal pressure for maximum filtration efficiency, even in low-pressure environments. - • **Compact & Customizable:** Same sleek footprint with selectable 50, 75, or 100 GPD models to fit your exact water needs. - • **Consistent Ultra-Pure Water:** Delivers up to 75 gallons of 0 TDS water daily—perfect for precision-driven professionals. - • **Automatic Membrane Backflush:** Extends filter life with hassle-free, periodic self-cleaning—no manual maintenance needed. - • **Real-Time Pressure Monitoring:** Integrated pressure gauge and switches provide peace of mind and system reliability. ## Overview The Finest-Filters 4-stage Reverse Osmosis unit with built-in booster pump and DI resin chamber produces up to 75 gallons per day of ultra-pure, 0 TDS water. Designed for low-pressure environments, it features automatic membrane backflush, pressure monitoring, and selectable capacities (50, 75, 100 GPD). Ideal for professionals demanding reliable, high-quality water filtration with minimal maintenance. ## Description The Finest-Filters 4 stage RO unit with booster pump is ideal for ultra pure water production in a range of applications, and especially in situations where the water pressure is too low for effective water production rate from an un-pumped system. This is a very advanced RO unit, with a built in booster pump, automatic membrane back flush, pressure gauge, high pressure and low pressure switch. The built in booster pump ensures the optimal water pressure is supplied into the RO unit for the best rejection rate and water production speed, saving both time and water. The automatic flush unit will operate periodically and back flush the RO membrane. This will prolong the life of the filters, and eliminates the need to manually back flush the membrane. The built in pressure gauge displays the water pressure (psi) to give piece of mind that the RO unit is working at the optimal water pressure. This unit is available in three different sizes (50gpd, 75gpd and 100gpd). gpd = gallons of product water (approx) produced per day. Please select the required model from the drop down box above when ordering. The physical size of the units is the same, just the membranes are rated at different capacities. These 4 stage units have a DI chamber, which is supplied filled with high quality DI Resin. After passing through the membrane, the filtered water is passed through the DI resin, to reduce the Total Dissolved Solids to 0. This is a 4 stage RO unit, which will produce 0 TDS water. Please note: The booster pump fitted to the unit is not rated for continuous use. The pump can run for a maximum of 2 hours then would need to rest for 15 to 30 mins. If you need to run the unit for long periods it is best to use a plug-in timer to turn the pump on and off as required. If you require further information regarding this, please contact us. Considerations before buying a Reverse Osmosis unit: - The process of producing RO water is very slow due to the intensity of the filtration process. - For an RO unit to be able to produce pure water, it needs to reject the majority of the water that goes into it. You will tend to get around 1 part pure water to 4 parts waste water. For example, every 10 litres of water that goes into the unit, you will get around 2-3 litres of pure RO water and the other 7-8 litres would go to waste. - This RO unit is purely for producing pure RO water. If you are using it for producing drinking water, you will need to remineralise the water before drinking due to the purity of the water the unit produces. - Due to the time it takes to produce RO water, If the water is going directly to a tap, you would also need a Pressurised Storage Tank so you always have water on hand ready for when the tap is opened. Review: Superb system - It was time for an upgrade so this is the best choice by far. Plug and play system, quiet pump. I did install a tds meter to measure accuracy. Buy with confidence Review: Works well - Works great, but the hole thing shakes a little when it’s in operation. ## Features - The Finest-Filters 4 stage RO unit with booster pump is ideal for ultra pure water production in a range of applications, and especially in situations where the water pressure is too low for effective water production rate from an un-pumped system. This is a very advanced RO unit, with a built in booster pump, automatic membrane back flush, pressure gauge, high pressure and low pressure switch. - The built in booster pump ensures the optimal water pressure is supplied into the RO unit for the best rejection rate and water production speed, saving both time and water. The automatic flush unit will operate periodically and back flush the RO membrane. This will prolong the life of the filters, and eliminates the need to manually back flush the membrane. - he built in pressure gauge displays the water pressure (psi) to give piece of mind that the RO unit is working at the optimal water pressure. - This unit is available in three different sizes (50gpd, 75gpd and 100gpd). gpd = gallons of product water (approx) produced per day. Please select the required model from the drop down box above when ordering. The physical size of the units is the same, just the membranes are rated at different capacities. - These 4 stage units have a DI chamber, which is supplied filled with high quality DI Resin. After passing through the membrane, the filtered water is passed through the DI resin, to reduce the Total Dissolved Solids to 0. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086GLMSJB | | Best Sellers Rank | 62,684 in DIY & Tools ( See Top 100 in DIY & Tools ) 28 in Under-Sink Filters | | Colour | Multicolor | | Customer Reviews | 4.5 4.5 out of 5 stars (24) | | Date First Available | 26 Mar. 2020 | | Item model number | 75gpd | | Quantity | 1 | | Size | 75gpd | | Special features | Built-in Booster Pump, Automatic Membrane Back Flush, Pressure Gauge, High and Low Pressure Switches, DI Chamber with DI Resin | ## Product Details - **Brand:** Finest Aquatics - **Capacity:** 75 G/day - **Installation type:** Under Sink - **Material:** Resin - **Model name:** 75gpd - **Package information:** Box - **Power source:** Corded Electric - **Purification method:** Reverse Osmosis ## Images ![Finest-Filters Reverse Osmosis RO Unit with Booster Pump and DI Stage Pumped 50-100gpd (75gpd) - Image 1](https://m.media-amazon.com/images/I/611kJvtXodL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Superb system *by R***. on 7 March 2025* It was time for an upgrade so this is the best choice by far. Plug and play system, quiet pump. I did install a tds meter to measure accuracy. Buy with confidence ### ⭐⭐⭐⭐ Works well *by R***R on 18 October 2025* Works great, but the hole thing shakes a little when it’s in operation. ### ⭐⭐⭐⭐⭐ Works as it should so far with a few mods *by A***S on 18 June 2025* So far it is working great however i will say i didnt trust the self tapping connector to the mains pipe so swapped it out for a female 3/4 x male 3/4 x 1/4 isolated T valve that screws on to the washing machine inlet and fits the supplied pipe perfectly. The tap water going in was 350ppm (on a good day) and the pure outlet reads 000ppm after being filtered. Not sure of my ingoing pressure but the pump is very very quiet and psi is at a very stable 90 through the filter. I have tried a glass of the filtered water before being remineralized to see if the bleach taste was gone and it is, taste is clean. I had to contact the shop to confirm a few things and got a quick response (within 15 mins) it is quite heavy so if mounted with the wall mount it will bend the metal if not supported correctly. Another thing to mention is one of the connectors was leaking on the unit but a little teflon tape fixed it right away. Overall for the price im quite happy and i will certainly be shopping with this seller again. Aquarium happy and i have clean water to drink too. ## Frequently Bought Together - Finest-Filters Reverse Osmosis RO Unit with Booster Pump and DI Stage Pumped 50-100gpd (75gpd) - HM Digital DM-1 in-Line Dual TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy - John Guest 3/4" BSP x 1/4" Push Fit Tap Adapter --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/191241250-finest-filters-reverse-osmosis-ro-unit-with-booster-pump-di](https://www.desertcart.hr/products/191241250-finest-filters-reverse-osmosis-ro-unit-with-booster-pump-di) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*