can you buy by the case a-o wh-pre-rp2?

https://www.amazon.com/dp/B07Y28SXWZ?psc=1&ref=ppx_pop_dt_b_asin_title

does the filter come with rubber seal or ring?

mine did not come with the O ring for the canister. Just the filters.

which is preferable for WH filter 5 micron or 20 micron?

As a rule the smaller the number the more the filter removes...however they also will need changing more often. We use a 20 our well is not terribly hard and this works fine. We change it about every 2 months.

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A. O. Smith 2.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PRE-RP2 | NSF Certified | Fits AO-WH-PREV or AO-WH-PRE Whole House Filtration System | 3-Month Filter | 2-Pack

A. O. Smith 2.5"x10" 20-Micron Universal Sediment Filter | AO-WH-PRE-RP2 | NSF Certified | Fits AO-WH-PREV or AO-WH-PRE Whole House Filtration System | 3-Month Filter | 2-Pack

Product ID: 173406080

Details

External Testing Certification
NSF 42 -
Item Weight
6.4 ounces
Material
Polypropylene
Product Benefits
Reduces
Product Dimensions
2.5"D x 2.5"W

🏠Whole house sediment protection

💧20 micron ultra-fine filtration

🔧Tool-free, DIY replacement

₨17331

Duties & taxes included

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Description

💧 Elevate your home’s water game—because every drop counts!

DUAL PACK VALUE - Two genuine AO Smith cartridges included, ensuring uninterrupted filtration and great savings.
EFFORTLESS DIY MAINTENANCE - Replace your filters every 3 months with zero plumber needed—simple, quick, and hassle-free.
CERTIFIED QUALITY ASSURANCE - NSF-certified genuine AO Smith filters guarantee peak contaminant removal and system longevity.
CRYSTAL CLEAR WATER EVERY TAP - 20 micron filtration removes sediment invisible to the naked eye for pristine water throughout your home.
OPTIMIZED FOR MODERN HOUSEHOLDS - Standard 2.5" size perfectly supports homes with 1-4 people, balancing performance and convenience.

The AO Smith 2.5"x10" 20 Micron Sediment Water Filter Replacement Cartridge 2-Pack is a certified, high-performance solution designed for whole house filtration systems. Engineered to remove ultra-fine sediment, these easy-to-install filters extend appliance life and maintain water clarity for households of up to four people. With NSF certification and genuine AO Smith quality, this pack ensures reliable contaminant removal and hassle-free maintenance every 3 months.

Specifications

ASIN	B07R3CG3C6
Best Sellers Rank	#2,254 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Whole House Water Treatment Systems
Brand Name	A. O. Smith
Compatible Water Purifier Models	A.O. Smith AO-WH-PRE, A.O. Smith AO-WH-PREV, Culligan HF-150A, Whirlpool WHKF-DWH, Whirlpool WHKF-DWHV
Customer Reviews	4.8 4.8 out of 5 stars (977)
External Testing Certification	NSF 42 - Reduces aesthetic impurities
Included Components	2 Replacement Filters
Item Dimensions D x W x H	2.5"D x 2.5"W x 10"H
Item Weight	6.4 ounces
Manufacture Year	2019
Manufacturer	AO Smith
Manufacturer Part Number	REACH 2 6
Material Type	Polypropylene (PP)
Model Number	AO-WH-PRE-RP2
Number of Items	2
Product Benefits	Reduces Sediment, Reduces Turbidity
Set Name	20-Micron Sediment
Unit Count	2 Count

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