I bought this to clean out my existing (2 year old) filter and start fresh this spring. This comes with all "O rings" in addition to short brushes, filter rings, and a new UV bulb. A small tube of silicone lubricant is also supplied to ensure the o rings do not dry out. The only thing this kit doesn't include are the bio rings but those should last forever. A solid five stars for this service kit: exactly what I needed.

It is everything you need to replace the entire internal functioning part of the filter. It has everything listed - it is just as you see in the description. The filters eventually need replacing - and this was the most economic means of getting the job done. I have used Laguna for two seasons - it is very effective for keeping the water clear, circulating the water, and controlling algae.

This is a nice maintenance kit that has everything needed to keep a Pressure-Flo unit functioning well. It's a bit pricey, but I prefer not to wait for the lamp to fail or the filters to get hopelessly ratty or the gaskets to become brittle before doing maintenance. . A great idea to get every year or two, I think.

I have a pressure flo 700 filter and the filters were perfect fit. Also the little brushes they send as well as the o rings are perfect and very useful. Got my filter back up and running and the pond water crystal clear within a few hours.

Super tiny tube of silicone grease for the O rings. The light is UV CT5 20W. What the brushes are for escapes me. You need to clean out the track on the black plastic thingy on the light with a Qtip. Grease the track & O rings. I intend to use Petro-Gel lubricant in the future 4oz for 6 bucks vs 10/12 bucks for Jacks 327. Now to source out the foam.