Quartz Sleeve for Delta EA - Pondmaster 70-18316 UV Light Bulb for Germicidal Water Treatment G10T51/2L The replacement lamp bulb has

The replacement lamp bulb has a four pin on a single end base

1 inch light bulb gives you a worry-free performance for a year after which it is recommended that you replace the light bulb even if it continues to emit light

Chamber Features:

Studies show that it is important to replace UV lamp periodically as the bulb hour rises

a 'Full UV' option supports broad-spectrum UV measurement

Quartz Sleeve for Delta EA - Pondmaster 70-18316 UV Light Bulb for Germicidal Water Treatment G10T51/2L The replacement lamp bulb hasReplacement Quartz Sleeve for Delta EA Pondmaster 70 18316 UV Light Bulb for Germicidal Water Treatment The Replacement Quartz Sleeve for Delta EA Pondmaster 70 18316 UV Light Bulb for Germicidal Water Treatment is an open ended quartz sleeve that is a guaranteed compatible replacement. The quartz sleeve works well with water sterilization filters, UV sanitizers and purifiers. The high sleeve works in unison with UV lamps in water disinfection units.