Response to Hi Gemma, there are a few variables to consider when sizing a pool filter. Here is a guide that we created called "How To Size a Pool Filter" that should assist. 

An image is worth 1,000 words! Add an image or two to your comment to help ensure it is understood accurately.

Yes, please email me exclusive discounts, swimming pool tips and helpful how to guides. This comment may be posted on a public site. Do not include: HTML, references to other retailers, pricing, personal information, or any profane, inflammatory language.