Fibered Roof Coating, 4.75-Gallons Watering Timers & Rain Gauges it has a triple O-ring

it has a triple O-ring sealed air chamber

steel undercarriage and seal-coated hardwood handles will deliver years of service

Full-length drum bushing and oil impregnated shaft bushings minimize maintenance

Replacement blades are also available and can be easily installed on the job

Fibered Roof Coating, 4.75-Gallons Watering Timers & Rain Gauges it has a triple O-ring4. 75 Gallon, Black Jack, Fibered Roof Coating, Penetrates, Resaturates & Protects Dried Out & Exposed Roofing Felt, Can Also Be Used On Metal Roofs & Siding, Exterior Foundation Walls & All Other Concrete & Masonry Surfaces, Easy To Use, Does Not Run Or Sag, Do Not Use On Shingle Roofs, For Exterior Use Only, Roof Should Be Clean & Dry Before Application. Approximately 35 SQFT Per Gallon, Clean Up With Mineral Spirits, Allow 48 Hours Before