| Growmax 10" De-Ionization Filter Kit | thehydrobros.com | 2064 GBP | 2,293 GBP | −10% |
| GrowMax Mega Grow Reverse Osmosis System 1000L Per Day | grorite.co.uk | 305.95 GBP | 339.95 GBP | −10% |
| GrowMax Power Grow Reverse Osmosis System 500L per Day | grorite.co.uk | 215.95 GBP | 239.99 GBP | −10% |
| Growmax Eco Grow 240 - 240 litres / hour - 2-Stage Filter | growershouse.co.uk | 89.99 GBP | 99.99 GBP | −10% |
| Growmax Pro Grow - 2000 litres / hour - 2-Stage Water Filter | grorite.co.uk | 325.95 GBP | 359.95 GBP | −9.4% |
| GrowMax Reverse Osmosis Membrane 150 GPD | grorite.co.uk | 69.95 GBP | 76.95 GBP | −9.1% |
| GrowMax Mega Grow 1000 Replacement Filter Pack | grorite.co.uk | 33.95 GBP | 36.95 GBP | −8.1% |
| GrowMax Replacement Filter Pack for Pro Grow 2000L/h | grorite.co.uk | 135.95 GBP | 142.95 GBP | −4.9% |
| Growmax Water Max - 700 L/D Reverse Osmosis | thehydrobros.com | 7007 GBP | — | — |
| GrowMax Pro Grow 2000 L/h 2-Stage Grow Water Filter | hydrocropshop.co.uk | 4265 GBP | — | — |
| GrowMax Mega Grow 1000 L/D Reverse Osmosis Unit | hydrocropshop.co.uk | 3861 GBP | — | — |
| GrowMax Maxquarium 000PPM RO Filter Unit 500 L/Day | hydrocropshop.co.uk | 3248 GBP | — | — |
| GrowMax Power Grow 500 RO Replacement Membrane | hydrocropshop.co.uk | 3104 GBP | — | — |
| GrowMax Power Grow 500 Reverse Osmosis Water Filter | hydrocropshop.co.uk | 2765 GBP | — | — |
| GrowMax UV Lamp Kit 4LPM | hydrocropshop.co.uk | 2585 GBP | — | — |
| GrowMax Garden Grow 2-Stage Water Filter for Grow Rooms | hydrocropshop.co.uk | 2322 GBP | — | — |
| GrowMax 3000 RO Filter | growell.co.uk | 1725 GBP | — | — |
| Growmax - Pro 3000 Reverse Osmosis Unit - 3 Stage Unit | onestopgrowshop.co.uk | 1725 GBP | — | — |
| Growmax - GrowMax 3000L/D R.O Filter Unit | prestwichhydroponics.co.uk | 1567 GBP | — | — |
| GrowMax 150 GPD Reverse Osmosis Replacement Membrane | hydrocropshop.co.uk | 913 GBP | — | — |
| GrowMax Reverse Osmosis System : GROWMAX 3000 : 3000L per day | vireta.co.uk | 909.99 GBP | — | — |
| Growmax - Pro Grow 2000L/H Water Filter System | prestwichhydroponics.co.uk | 477 GBP | — | — |
| Growmax Pro Grow - 2000 litres / hour - 2-Stage Water Filter | growell.co.uk | 456 GBP | — | — |
| Growmax - Mega Grow 1000L/D R.O Filter Unit | prestwichhydroponics.co.uk | 442 GBP | — | — |
| Growmax Mega Grow 1000 - 1000 litres / day - Reverse Osmosis System | growershouse.co.uk | 329.99 GBP | — | — |
| Growmax - Super Grow 800L/H Water Filter System | prestwichhydroponics.co.uk | 325 GBP | — | — |
| Growmax - Power Grow 500L/D R.O Filter Unit | prestwichhydroponics.co.uk | 304 GBP | — | — |
| GrowMax Water Filter System : PRO GROW 2000 L/h | vireta.co.uk | 299.99 GBP | — | — |
| GrowMax 10 Inch Replacement Filter Pack for RO Water Systems | hydrocropshop.co.uk | 294 GBP | — | — |
| GrowMax Reverse Osmosis System : MEGA GROW 1000L per Day | vireta.co.uk | 289.99 GBP | — | — |
| Growmax Reverse Osmosis System 500L | hydroponics.co.uk | 253 GBP | — | — |
| Growmax Garden Grow - 480 litres / hour - 2-Stage Water Filter | growell.co.uk | 249 GBP | — | — |
| GrowMax Reverse Osmosis System : MAXQUARIUM 000 PPM 500L per Day | vireta.co.uk | 239.99 GBP | — | — |
| Reverse Osmosis Membrane 500 GPD | londongrow.com | 239.95 GBP | — | — |
| Growmax - Garden Grow 480L/H Water Filter System | prestwichhydroponics.co.uk | 221 GBP | — | — |
| GrowMax Water Filter System : SUPER GROW 800 L/h | vireta.co.uk | 219.99 GBP | — | — |
| GrowMax Reverse Osmosis System : POWER GROW 500L per Day | vireta.co.uk | 199.99 GBP | — | — |
| GrowMax High Flow Pump Kit | onestopgrowshop.co.uk | 154.95 GBP | — | — |
| Pro Grow 2000 Water Filter | greenshorticulture.co.uk | 152.95 GBP | 407.95 GBP | — |
| Replacement Filter Pack - Pro Grow | londongrow.com | 148.95 GBP | — | — |