20" JumboPentair
Pentair 20" Jumbo Twin Whole House Rainwater Filter System
Suits a medium to large home · 20" JumboHelp me choose
What size is my home? Small to medium: 1–2 bathrooms, up to 3 bedrooms. Medium to large: 2+ bathrooms, 4+ bedrooms.
$943.00incl. GST
Our promise: if it's not right, we'll put it right.
Need a hand picking the right system?
Email us a photo of your current setup or water source and we’ll point you to the right system.
- NZ owned & operated
- Most orders dispatched same or next day
- Click & collect from Te Rapa, Hamilton
- Brand
- Pentair
- Size
- 20" Jumbo
- Type
- Whole House Rainwater Filters
- SKU
- 20BWH-TWIN(GAC)
How it works
2 stages
Water goes through each cartridge in order before it reaches your taps.
- Tank water in
Stage 1
Dual gradient sediment
Dual gradient sediment cartridge
20" Jumbo25 to 1 micronPentair 20BDGD-PA
Holds larger particles in the outer layers and finer particles deeper in the filter.
Stage 2
Radial flow carbon
Radial flow granular activated carbon cartridge
20" JumboPentair 20BRFGAC
Carbon treatment after the sediment stages.
- Filtered water to the whole house
Fit check
Is it right for my home?
A quick check before you buy.
-
On tank or rainwater
Good fitSet up for tank, rainwater and rural supplies.
-
On town or mains water
Not this oneThis one is set up for rainwater.
town water version
$1,058.00
See the town water version
-
Want to pick your own cartridges
ConsiderThe same housings are sold without cartridges.
housings only
$701.50
See the housings only
Specs
Specs and what's in the box
- Model
- 20BWH-TWIN(GAC)
- Housings
- 2 × Pentair 20" Jumbo
- Stage 1
- 20BDGD-PA, dual gradient sediment
- Stage 2
- 20BRFGAC, radial flow carbon
- Water source
- Tank, rainwater and rural
- Included
- Bracket, ball valve, spanner
What's in the box
- 2 × Pentair 20" Jumbo filter housings
- Mounting bracket
- Ball valve
- Housing spanner
- 1 × 20BDGD-PA cartridge
- 1 × 20BRFGAC cartridge
Common questions
Are the cartridges included?
Yes. 20BDGD-PA, 20BRFGAC come fitted.
How often do I change the cartridges?
When the flow drops noticeably or treatment falls off. It depends on your water quality, sediment load and use.
Still not sure?
Tell us about your home and water supply and we'll point you to the right system.
Full product details
Read the full description
A 2-stage whole-house filter for tank, rainwater and rural supplies, built on 2 Pentair 20" Jumbo housings with the cartridges already fitted.
Water passes through each stage in order: dual gradient sediment (20BDGD-PA) → radial flow carbon (20BRFGAC).
It comes assembled on a mounting bracket with a ball valve and a housing spanner. Fit it on the incoming line, restore pressure slowly, check every joint for leaks and flush the new cartridges before use.
Change cartridges when the flow drops noticeably or treatment falls off. How often depends on your water quality and use.
We're NZ owned in Te Rapa, Hamilton. If it's not right, we'll put it right.
Replacement cartridges
Takes 20" Jumbo cartridges
When it is time for a change, these are the cartridges that fit. Subscribe on eligible cartridges and save up to 15%.
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