3/4 NPT respirator
Breathing apparatus, also known as “the oil plug”, is the accessories for hydraulic power units plastic fuel tanks or steel tanks, the respirator for the ordinary-, air filter .
Oil cap material: Nylon
Breather for plastic hydraulic reservoir tanks ,and also can be used for metal oil tank .
Here is the standard breather ,with indication of oil height ,with air filter cotton,without indication of oil height