does this fit a 4.5 x 10" filter? If so why is it not stated on the product as most of your customers would rather use a larger filter & replace less

It takes a 2.5x10 to be replaced every 6 months.

As I understand it the Post-Filter in the whole house diagram is a 5 micron filtration?

you can get different filter cartridges to fit this filter holder. cartridges sold separately

Does anyone know who sells the mounting brackets that fit this PRE system?

Check on Amazon or Home Depot but it's hard to find without the housing..

Can this be use as the pre-filter and the post filter? Also can this all be mounted outside?

Sure why not. Your question doesn’t say anything about pre and post what. I would venture to guess that you have some other kind of water treatment equipment between the two so maybe you would put different filter media in the post filter to further improve water quality. There are many kinds of filters you might use inside the canister .

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

AO-WH-PRE

Product ID: 170412283

Details

Brand
A. O. Smith
Capacity
200 gallons
Included Components
Filter housing
Installation Type
Whole House
Material
Polypropylene
Package Information
Housing

💧7 GPM max flow rate

🔧DIY install w/ included wrench

🛡️NSF Certified sediment reduction

AR$154418

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Description

💧 Elevate your home water game—sediment-free living starts here!

CUSTOMIZABLE FILTRATION - Works solo or pairs seamlessly with other A.O. Smith systems to tailor your water quality.
EFFORTLESS FILTER SWAPS - Built-in pressure relief button makes filter changes a breeze—no plumber needed.
SEDIMENT FREE EVERY TAP - Certified to reduce dirt, rust & sediment for pristine water throughout your home.
COMPACT DURABLE DESIGN - Polypropylene housing with 7 GPM flow supports whole house needs without bulky installation.
TRUSTED NSF CERTIFICATION - Backed by NSF Standard 42 for reliable particulate removal you can count on.

The A.O. Smith Whole House Sediment Pre-Filter Housing (AO-WH-PRE) is a compact, NSF-certified filtration system designed to reduce sediment, dirt, and rust from your entire home's water supply. Featuring a 7 gallons per minute max flow rate and easy DIY installation with included wrench and pressure relief button, it supports universal 2.5-inch cartridges (sold separately) and can be used alone or combined with other A.O. Smith filters. Built from durable polypropylene, it operates efficiently within 25-100 psi and temperatures from 40°F to 100°F, ensuring cleaner water and longer appliance life with minimal hassle.

Specifications

ASIN	B07R7BP5Y5
Best Sellers Rank	#20,777 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Whole House Water Treatment Systems #4,865 in Kitchen & Bath Fixtures
Brand	A. O. Smith
Brand Name	A. O. Smith
Capacity	200 gallons
Container Type	Housing
Customer Reviews	4.3 out of 5 stars 1,971 Reviews
Filter Life Cycle	6 months
Included Components	Filter housing, housing wrench (filters sold separately)
Installation Type	Whole House
Item Dimensions L x W x H	12.8"L x 5.39"W x 5.2"H
Item Highlight	NSF Certified \| Protects Appliances, Reduces Sediment \| Whole Home Filtration \| 3/4" Inlet/Outlet \| 1-Year Warranty
LowerTemperature Range	40 °F
Manufacturer	AO Smith
Material	Polypropylene
Material Type	Polypropylene
Maximum Flow Rate	7 gpm
Model Name	AO-WH-PRE
Model Number	AO-WH-PRE
Number of Packs	1
Operating Pressure Range	25-100 psi
Other Special Features of the Product	Sediment Reduction
Part Number	AO-WH-PRE
Power Source	Manual Operation
Product Dimensions	12.8"L x 5.39"W x 5.2"H
Purification Method	Mechanical Filtration, Sedimentation
Special Feature	Sediment Reduction
Supported Water TDS Level Maximum (PPM)	300
Upper Temperature Rating	100 °F
Warranty Description	1-Year Limited Warranty

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

AR$154418

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews