Check the listing for details. Blaster 1000 Automatic Cleaner for Hot Tub Filter Cartridges up to 20" Long. Condition: New. Listed at 109.95 USD. Blaster 1000 Automatic Cleaner for Hot Tub Filter Cartridges up to 20" Long Keep your spa and pool filters clean with the Blaster Automatic Filter Cleaner. Just connect a hose, set your filter, and turn on the faucet. Blaster automatically rotates your filter, while power jets spray focused water deep inside the filter pleats. Scum, dirt, and debris are blasted away in minutes, effortlessly and with no mess. Blaster 1000 for filters up to 20" long Automatically rotates as it cleans Product notes: Filter cartridges must be over 4" diameter. Recommended water flow rate 7-10 GPM, 5 GPM (minimum).Use with ecoTUB Instant Filter Spray Cleaner for best results. 1-year manufacturer's warranty.Blaster 1000 Automatic Cleaner for Hot Tub Filter Cartridges up to 20" Long Keep your spa and pool filters clean with the Blaster Automatic Filter Cleaner. Just connect a hose, set your filter, and turn on the faucet. Blaster automatically rotates your filter, while power jets spray focused water deep inside the filter pleats. Scum, dirt, and debris are blasted away in minutes, effortlessly and with no mess. Blaster 1000 for filters up to 20" long Automatically rotates as it cleans Product notes: Filter cartridges must be over 4" diameter. Recommended water flow rate 7-10 GPM, 5 GPM (minimum).Use with ecoTUB Instant Filter Spray Cleaner for best results. 1-year manufacturer's warranty.