Will this fit the express whole house filter system? It too has 20" filters.

If you have the dimensions of the filter AND the housing, a quick check of the dimensions should tell you what you need to know. Mine are in a "Big Blue" filter housing and work fine. A quick tip... When the instructions say, "Tighten filter housing hand tight." they mean hand tight. Using a filter wrench to tighten it will wrinkle the O-ring and it WILL leak.

Does it matter which end you put up? I see a plastic ring on one end. Bad fit, after 2 tries w/leaks put in an iSpring filter and all was good.

I have Never had that problem, I have used these for over 2 years in my Pentek Big Blue series canister system and they work great!

Can I wash these for reuse before replacing?

Washing them won't hurt them, but you will not be able to get them clean. Even a pressure washer won't remove all of the impurities from a 1 micron filter.

These state they are Pentek 155358-43 replacement, that is a 5 micron filter, Pentek 155360-43 is 1 micron, which is it?

First of all they are different part numbers. Second there are both 5 and 1 micron filters for Pentek systems. Depending on how much particulate matter is in you water you may want either the 5 or 1 micron filter. That said, in all likelihood you will have to change the 1 micron filter more frequently than the 5 micron filter.

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Aquaboon 1 Micron 20 x 4.5 Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with AP810-2, SDC-45-2005, FPMB5-20, P5-20, FP25B, 155358-43, 2 Pack

Aquaboon 1 Micron 20 x 4.5 Sediment Water Filter Replacement Cartridge | Whole House Sediment Filtration | Compatible with AP810-2, SDC-45-2005, FPMB5-20, P5-20, FP25B, 155358-43, 2 Pack

Product ID: 37500828

Details

External Testing Certification
NSF
Item Weight
3.7 pounds
Material
Polyethylene
Product Benefits
Reduces
Product Dimensions
4.5"D x 4.5"W

💧1 micron ultra-fine filtration

⚙️high dirt-holding capacity

🛡️triple-layer sediment defense

150259CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Elevate your home’s water game with precision filtration that’s impossible to ignore!

TRIPLE LAYERED PROTECTION - Sparse, compaction, and precision layers work in harmony to block sediment and rust.
CONSISTENT FLOW NO COMPROMISE - Large dirt-holding capacity maintains steady water pressure even under heavy use.
BUILT TO LAST BUILT TO PROTECT - Thermally bonded polypropylene ensures durability and corrosion resistance.
CRYSTAL CLEAR WATER EVERY DROP - Captures particles as small as 1 micron for pristine whole-house filtration.
KEEP YOUR HOME RUNNING SMOOTHLY - Prevents sediment buildup to extend the life of your plumbing and appliances.

The Aquaboon 1 Micron 20 x 4.5 Sediment Water Filter Replacement Cartridge offers advanced triple-layer filtration technology that captures sediment down to 1 micron, ensuring crystal-clear water throughout your home. Made from durable, corrosion-resistant polypropylene, this filter protects plumbing and appliances from sediment damage while maintaining consistent water flow. Compatible with multiple models and sold in convenient 2-packs, it’s NSF-certified and highly rated for reliable whole-house sediment filtration.

Specifications

ASIN	B01LZD6OD5
Best Sellers Rank	#25,839 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #178 in Replacement Under-Sink Water Filters
Brand Name	Aquaboon
Customer Reviews	4.7 4.7 out of 5 stars (1,096)
External Testing Certification	NSF
Included Components	Manual
Item Dimensions D x W x H	4.5"D x 4.5"W x 20"H
Item Weight	3.7 pounds
Manufacturer	Aquaboon
Manufacturer Part Number	ABC-2S20BB1M
Material Type	Polyethylene (PE)
Model Number	AB-2S20BB1M
Number of Items	2
Product Benefits	Reduces Sediment
Set Name	2-Pack 1 Micron Sediment Water Filter Cartridges (20x4.5 inches)
UPC	850015007606
Unit Count	2 Count

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