Wondering what size pool filter you need? Learn how to calculate the right filter size, compare sand, cartridge, and DE filters, and discover expert advice for pairing your pool with the perfect filtration system. Keep your water crystal-clear with this complete guide.

Selecting the right size pool filter is vital to proper pool maintenance and water cleanliness. This guide walks you through calculating your pool’s volume and pump flow rate to find the suitable filter size. It covers different filter types like sand, DE, and cartridge filters, offers practical sizing charts, maintenance tips, and answers common pool filter questions. Understanding these factors ensures efficient water filtration, prolongs equipment life, and keeps your pool sparkling clear.