This durable matte black color soap dispenser makes a wonderful replacement for most countertop liquid soap pumps. Each pump delivers 2ccs of fluid, and this pump works with soap, lotion, and much more! Thread size is 28/400, the same size as a 2 liter soda bottle, and fits most standard soap pumps. You can check your existing soap dispenser with a soda cap to ensure the replacement will fit. Thread diameter is approx 1-1/16 inches.