Alerts Combo Pack 6 Month

The Alert Combo Pack combines Ammonia Alert (1 card) and pH Alert® (1 card). The Ammonia Alert and pH Alert are approximately half the size of competing products. At 1.5" x 2.5", they are small, conspicuous and unobtrusive, so they will not detract from the view of your aquarium. Simply place the Ammonia Alert and pH Alert clearly anywhere in your aquarium or filter. It's easy. No chemicals or testing procedures are required.