this is a specialized 5-inch deep-pleated media filter

While it is rated for 240V

The internal alloy steel spring is isolated from the water flow via a reinforced diaphragm

How do I ensure a secure fit

Automation Components Inc (ACI) A/RH3-AN-D Transmitter 320074-702 this is a specialized 5-inchThe Automation Components Inc (ACI) A RH3 AN D Transmitter is a high performance duct relative humidity sensor designed for precision monitoring in demanding HVAC BAS environments. Featuring a capacitive sensing element with a multilayer construction and hydrophobic filter, this unit delivers a proportional analog output with 3% accuracy. It is highly resistant to environmental contaminants such as dust, oils, and common chemicals, ensuring long term