The Double Ring Infiltrometer kits from Soilmoisture Equipment are used for the measurement of soil permeability and the determination of other related soil properties. Available in two versions, the PR30 can function as either a falling head or constant head infiltrometer, whilst the PR30B can only function as a falling head infiltrometer.

• PR30 (Old part number: 2830K3): Double ring infiltrometer kit, single set, (3 and 5l bubblers, 30 and 57 cm rings)
• PR30B (Old part number: 2830K2): Double Ring Infiltrometer, 30 and 57 cm rings, Less Reservoirs, falling head