After inquiring with 10+ pool companies, Dan provided the best price on a new cartridge filter. Dan was very responsive to all of my calls and messages. He arrived on time and completed the installation as promised. I'm extremely pleased with the new cartridge filter now. My pool stays super clean now! I ended up going with his recommendation, Hayward C4030 and it's been fantastic. He even recommended a new pool vacuum, The Pool Cleaner by Hayward and it's been fantastic. My pool is looking better than ever. I highly recommend Dan and his services. Thank you Dan!