Non-Vented Wide Mouth LDPE Squeeze Rinse Wash Bottle for Plant Watering, 500mL Subcategory_Health and Genetics this 4-inch carbon-steel needle pivots

this 4-inch carbon-steel needle pivots on a brass cup bearing for low-friction rotation under the local field

offering a larger bore than narrower models for higher-volume bench-to-bench fluid runs

fastened by two wide-pad stainless steel thumb screws under heavy torsional load

and iron rods for linear-expansion comparison

and spring

Non-Vented Wide Mouth LDPE Squeeze Rinse Wash Bottle for Plant Watering, 500mL Subcategory_Health and Genetics this 4-inch carbon-steel needle pivotsBuilt for plant and succulent watering, this 500mL wide mouth LDPE squeeze rinse bottle features a non vented cap for controlled directed dispensing.