I am looking between the Hayward Swim Clear 425sq and the Pentair Clean and Clear 420sq for a 15,000 galloon pool. Are there any major differences or things to consider when choosing between the two? Replacement cartridges look to be priced similarly. From looking at posts Pentair seems to be highly recommended. Home Depot sells the Hayward filter and I can receive 10% off with my military discount. I am just trying to figure out if the $150 savings is worth it to steer away from the Pentair. Thanks!