Pentair 140316 TR140C Sand Filter use 261050 Valve; 275# Gravel(6); 650# Sand(13) apc pool covers The Polaris 3407 Jandy Space 21071504863 The Polaris 3407 Jandy Space Saver Valve is engineered for pool and spa plumbing systems where space is tight but high flow is still needed Zodiac G35 Mineral Cartridge for pools up to 35 ✅ Key Features: 🏊 Designed for pool filtration with sand media for reliable cleaning performance 🔧 Compatible with Pentair 261050 valve for proper system setup 🪨 Requires 275 lb of number 6 gravel and 650 lb of number 13 sand 💨 Helps trap dirt then the recommended sand media Follow the valve and tank setup instructions for proper operation Backwash and maintain the filter regularly to keep water circulation strong ⚠️ Important: Use only compatible filter media and follow the manufacturer instructions for filling and startup For best performance