Designed for use in 8 stage benchtop systems that accept dome ceramic cartridges

The underside is adhesive so that once positioned on the nose

Customisable Fit: Adjustable design accommodates a circumference of approximately 40cm to 65cm

Switch: Inline on/off switch

Kemmie 2Kg Boric Acid Powder 99.9% Pure - Soluble Orthoboric Acid H3BO3 HSC Lamps Designed for use in 8Boric Acid (H3BO3) is a high purity white crystalline powder suitable for agricultural, hydroponic and technical applications. With over 99. 9 percent purity, it dissolves cleanly in water and is commonly used as a boron source in nutrient programs and industrial processes. Features: 99. 9 percent pure orthoboric acid (H3BO3) Water soluble for soil, foliar and hydroponic use Fine white crystalline powder for accurate measuring Suitable for