Does this kit include the relief valve spring

500" NPT hubs) capabilities

resulting in a significantly quieter indoor environment

Can the filter element be cleaned or must it be replaced

MAMAC Systems TE-701-B-12-B Temperature Sensor 320734-701 Does this kit include theThe MAMAC Systems TE 701 B 12 B is a professional grade duct temperature sensor engineered for precise thermal monitoring in high demand HVAC systems and Building Automation Systems (BAS). This model features a high sensitivity 10,000 Ohm NTC Thermistor (Type II), a standard in the industry for its stable resistance to temperature curve and compatibility with major controllers like Carrier, Trane, and JCI. The 6 inch stainless steel probe is designed