Jack's Classic All Purpose 20-20-20 4 Lb

Interior threads which accept 3/4 in standard pipe thread. Use as ebb and flow fittings and bulkhead fittings. Increased versatility: thread PVC pipe fittings into bulkhead fittings - ideal for use in aeroponic and drip applications.

• Manufactured with Avara Technology, a proprietary Food-Grade Material.
• Patented, 7" Crystal Clear design, with Perfect Fit system for a secure fit with standard 1020 trays.
• Constructed from thick, high-grade material for excellent light transmission and long-term durability.
• Perfect 2-Finger Easy Vent ensures precise humidity regulation.
• BPA-free, non-off-gassing, reusable and recyclable, contains reclaimed ocean plastics.