Description
Overview
The Mars 43305 is a 3/4″ Sight Glass featuring an EPDM (Ethylene Propylene Diene Monomer) gasket, designed for use in hydronic heating and steam distribution systems. This sight glass allows technicians and operators to visually inspect fluid flow, liquid levels, and system conditions without interrupting operation — a critical advantage for efficient system maintenance and troubleshooting.
EPDM Gasket Advantage
The integrated EPDM gasket provides a dependable, leak-resistant seal suited for hot water and steam applications. EPDM is widely recognized in the HVAC and hydronic industry for its:
- Excellent resistance to heat and steam
- Superior performance in water-based systems
- Long-lasting flexibility and durability
- Resistance to weathering, ozone, and aging
Key Features
- 3/4″ connection size for easy integration into standard hydronic and steam piping
- EPDM gasket construction for a secure, leak-free seal
- Clear sight glass for real-time visual monitoring of fluid flow and system status
- Compact design suitable for tight mechanical spaces
- Manufactured by Mars — a trusted name in HVAC and hydronic components
Typical Applications
- Hydronic heating systems
- Steam distribution and condensate return lines
- Boiler system piping
- Commercial and industrial HVAC water systems
Product Specifications
- Brand: Mars
- SKU / Part Number: 43305
- Connection Size: 3/4″
- Gasket Material: EPDM
- Type: Sight Glass
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