The LSP201 Series medium pressure brass sight plug has a clear glass sight and male PTF pipe thread connection. Designed to be an economical alternative to high performance fused sight plugs and with pressure ratings exceeding the LSP151 Series. The LSP201 Series sight plug features a tamper resistant construction and can be accessorized with reflector and float ball. Box quantities may apply. Standard Features: Stud end sizes from 1/4 NPT to 2-11½ NPT Clear glass sight Body machined from cold finished brass bar stock Available open view, with reflector or with reflector and float ball Pressure & Temperature Ratings: Maximum operating temperature up to 180°F (82°C). For applications requiring maximum operating temperatures in excess of 180°F (82°C), consult factory for available options. Pressure ratings vary by sight plug size, refer to spec sheet for complete details. Caution: Do not use an impact wrench to install sight plug. Not recommended for steam applications. Scratched glass significantly reduces the pressure rating of the sight plug.