Resources
Guides for commercial buyers
What to send for a quote, how to cross-reference a part number, and how commercial case pricing actually works.
How to Submit a Filtration-Consumables RFQ
A purchasing checklist for specified products, quantities, alternative rules, deadlines, delivery and required documents.
Read the guideHow to Compare a Filter Specification and Proposed Alternative
Check product identity, micron rating, fit, operating conditions and written acceptance rules before considering an alternative.
Read the guideWhat a Product Certification Does and Does Not Cover
Check the exact model, standard, listing and claim scope instead of assuming certification covers every contaminant or application.
Read the guideWhat to Send for a Commercial Water Filter Quote
A short checklist of what to send for accurate commercial case pricing — part number, quantity, and a few details that speed things up. Partial information is fine.
Read the guideHow to Cross-Reference a Commercial Water Filter Part Number
What actually has to match before a replacement cartridge is a real substitute — and why a size match alone isn't enough.
Read the guideWhy the Cheapest Replacement Filter Isn't Always the Lowest-Cost Option
Cartridge unit price is one line on the invoice. Here's what else actually determines what a filter program costs.
Read the guideBuying Commercial Water Filters by the Case
Case purchasing is available for commercial replacement filters, but case quantity varies by product. Here's what to send to get case pricing.
Read the guideCommercial RO Pretreatment Filters
What goes into commercial RO pretreatment, why the sequence isn't universal, and what to send to get pretreatment cartridges quoted.
Read the guide