Nalgene® Boston round neck bottles made of LDPE with cap:

Nalgene Boston Round Narrow Neck LDPE Bottles with Closure: Bulk Thermo Scientific™ Nalgene™ Boston Round Narrow Neck LDPE Bottles with Closure are suitable for packaging, transporting and storing a variety of reagents Capacity: 16 oz. (500 ml) Capacity (metric): 500 ml Capacity (anglo): 16 oz. Color: Natural Color Description: narrow neck bottle "Boston Round" Inner diameter (metric) Neck: 21 mm Number per carton: 125 Number per package: 125 Type: narrow neck bottle Cap color: Natural Color Neck finish: 28 mm Certification/Conformity: Manufactured in accordance with the quality requirements of ISO standard 13485:2016. Bottles and their closures meet the requirements of US standard 21CFR177.1520 for use in the food and beverage industry, USP Class VI. Closure Liner: Without liner Closure Included: Yes Closure Size: 28 mm Closure Material: Polypropylene Closure Type: Yes (bulk, not assembled) Diameter (metric): 73 mm Graduated: No Height (Anglo): 6.71 in. Height (metric): 170 mm Opening: Narrow Shape: Round Dispensing through Closure: No Width (anglo): 2.86 in. Unit Size: Case of 125