Forespar Marelon Mushroom-Head Seacock, presents to 1.1/2" BSP Female
This assembly consists of : Thru Hull and Valve Body 
Constructed From Glass Re-inforced Dupont Zytel
Which is Non-Corrosive & Non-Conductive and has High Impact Stregnth

No bonding (electrical) required
Configurations to fit tight machinery spaces
Minimal maintenance requirements
Ease of installation with standard tools
Accepts adhesives and coatings (bottom paints) easily
Can be used on aluminum, steel, wood or FRP hull forms
Excellent chemical resistance to harsh bilge cleaners
Can be used with or on metal fittings
Long term reliability