Do whole house filters reduce water pressure?

Quality whole house filters are designed to maintain flow rates of 15-56 L/min, which is enough for most UK homes. Pressure drops are minimal with properly sized systems.

Can I install a whole house filter myself?

Whole house filters are installed at the mains inlet and require professional plumbing. This is not a DIY job unless you are a qualified plumber.

Whole House Filters

Installed at the mains inlet, these systems filter every drop of water entering your home.

Best for: Homeowners wanting filtered water from every tap and shower · £250–£800

Read our full guide: Best Whole House Water Filter UK

Not sure which to pick? Check your water first.

Try your postcode — e.g. SW1A, M1, B1

Whole House

BWT E1 Single Lever

£250

4.3/5

WRAS approved — meets UK plumbing standards
Single-lever backwash makes maintenance straightforward
Protects boilers and appliances from sediment damage

WRAS approved

View deal

Whole House

Waterdrop WHF21 Whole House

£600

4.5/5

NSF 42 certified for chlorine taste and odour removal
Three-stage filtration handles sediment, chemicals, and metals
High 15 GPM flow rate won't reduce water pressure

NSF/ANSI 42

View deal

Whole House

Aquasana EQ-1000 Rhino

£800

4.4/5

1,000,000-gallon capacity — lasts most homes 10 years
Removes lead and mercury alongside chlorine and sediment
NSF 42 + 61 dual certification for structural and taste safety

NSF/ANSI 42NSF/ANSI 61

View deal

Side-by-side comparison

Filter	Price	Rating	Annual Cost
BWT E1 Single Lever Protecting whole-house plumbing from sediment and particles	£250	4.3	—
Waterdrop WHF21 Whole House Whole-house chlorine and iron removal for well or mains water	£600	4.5	£120/yr
Aquasana EQ-1000 Rhino Long-term whole-house filtration for heavy metal and chlorine removal	£800	4.4	£60/yr

Common questions

Do whole house filters reduce water pressure?: Quality whole house filters are designed to maintain flow rates of 15-56 L/min, which is enough for most UK homes. Pressure drops are minimal with properly sized systems.
Can I install a whole house filter myself?: Whole house filters are installed at the mains inlet and require professional plumbing. This is not a DIY job unless you are a qualified plumber.

We may earn a commission when you buy through our links, at no extra cost to you. Recommendations are based on water quality data, not sponsorship. Affiliate disclosure