Description Round vent louver with 2-1/2″ hose adapter size. Available in chrome or black louver. Shape: Round Louver color: Chrome or Black Adjustable swiveling louver Short thread style for panel thickness of 1/8″ or less Louver 2.5″ dia. with 2.5″ hose adapter Single vane Replaces MX Systems/Manex #12-0072 or #12-00077
