Hy-Gen Ph-4 Buffer Solution (250mL 1 or 5L) not finished rigid 'quartz-like' matrix

rigid 'quartz-like' matrix

Rosin Filter Bag

effective protection against a wide range of common pests

Super PK is a nutrient additive

Hy-Gen Ph-4 Buffer Solution (250mL 1 or 5L) not finished rigid 'quartz-like' matrixIntroducing Hy Gen Ph 4 Buffer Solution HY GEN is a brand that guarantees quality for all its calibration and care solutions, which are formulated using high quality analytical grade ingredients. Our chemist, with over 25 years of experience, supervises all formulations and procedures with great care. The optimal pH range for nutrient solutions typically falls between 5. 8 and 6. 5. Deviations from this range can reduce the availability of nutrients