ALL CATEGORIES

SHOP BY INDUSTRY

EXCLUSIVE BRANDS

NEW PRODUCTS

EXPLORE SOLUTIONS

CATALOG

DEALS

About Us

Careers

News & Press

Investor Relations

Distribution Centers

Help Center

My Account

My Orders

Track My Order

Shipping & Returns

Apply For Credit

International Sales

Sales Tax Info

W-9 Form

Catalog

Product Recall / Safety Info

Floor Care Machine Self-Service

Customer Support

Extended Service Plan

Limited Warranty Information

Affiliate Program

Government Sales

Resellers

Become A Supplier

Safety Services

Subject Matter Experts

Territory Sales Manager

Accessibility Options

eProcurement

Services

Inventory Clearance

Free Shipping

New Products

Knowledge Center

Industrial How-Tos

More Ways To Shop

Watts Filters 20"X4 1/2 Mixed Bed Di This filter is 20" X 4 1/2". Features Mixed Bed Deionization Media for demineralization.

Customer Also Viewed

Save 15% Off

on all Auto-Reorders

<a href="/knowledge-center">Knowledge Center</a>

<a href="/contactUs">Customer Support</a>

<a href="/account/browse-history">Browse History</a>