Astral ECA Media Filter Range Reliable, Economical Sand Filtration for Aussie Pools Designed and manufactured in Australia, the Astral ECA Media Filter range delivers crystal-clear water for residential pools and spas up to 120 kL. Each injection-moulded tank is built to handle harsh UV, fluctuating water chemistry, and daily back-washing with ease, while the six-way multi-port valve makes maintenance a breeze. Compatible with silica sand, recycled glass, or Zeolite media, the ECA series provides flexible, low-cost filtration and pairs perfectly with modern variable-speed pumps for lower running costs. Buy with confidence from Premium Pool Equipment – nationwide shipping, genuine Astral spares, and a 10-year tank warranty. Key Features High-strength, UV-stabilised injection-moulded tank Six-position multi-port valve with easy back-wash, rinse & recirculate 10-lateral under-drain delivers even water flow & deeper bed filtration Accepts sand, glass, or Zeolite media for tailored performance Corrosion-resistant 40 mm barrel-union ports for quick installation Low operating pressure – ideal for energy-saving variable-speed pumps 10-year tank / 12-month valve & internals warranty Model Comparison Table Model Tank Ø (mm) Filter Area (m²) Port Size (mm) 6 hr Turnover (L) 8 hr Turnover (L) Sand (kg) Glass Coarse (kg) Glass Fine (kg) Height* (cm) Width* (cm) Weight (kg) ECA550 586 0.23 40 65,000 85,000 80 30 50 98 58.6 13 ECA650 665 0.30 40 92,000 120,000 120 45 75 105 66.5 17 *Height & width measured with valve installed. Frequently Asked Questions Q1: Which ECA model suits my pool size?Match your pool volume to the “6 hr Turnover” figures. For example, a 70,000 L pool suits the ECA550, while anything closer to 120,000 L pairs with the ECA650. Q2: Can I switch from sand to glass media?Yes. Both ECA models accept recycled glass, providing finer filtration and lower back-wash water usage. Q3: Is the ECA filter compatible with salt or mineral pools?Absolutely. The tank and valve are corrosion-resistant and UV-stabilised, making them ideal for saltwater, magnesium, and chlorine systems.