Pond Pump
OASE AquaMax Eco Expert 20000 / 12 V
Model: 20000 / 12 V
A submersible 12 V filter and watercourse pump from OASE with a manufacturer-listed maximum flow of 19,300 l/h (spec table) and an electronic, variable power range of 30–260 W. It features an 8 m pump cable, stainless-steel coarse prefilter basket and G2 connections.
About OASE AquaMax Eco Expert 20000 / 12 V
The OASE AquaMax Eco Expert 20000 / 12 V is a 12 V filter and watercourse pump intended for pond and watercourse applications. According to OASE’s technical data table and operating manual the model’s maximum flow is 19,300 l/h and its maximum delivery head is 4.60 m; OASE’s product page also contains different descriptive values (see limitations). The pump is electronically controllable and the manufacturer publishes a variable power range of 30–260 W rather than a single fixed wattage, so power consumption depends on operating point and control settings. The unit includes a robust stainless‑steel coarse prefilter basket (intake surface 1,060 cm²) and is rated to pass solids up to 11 mm. Threaded suction and discharge connections are G2 and the supplied stepped hose nozzles support 38 / 50 mm (1½", 2") hose sizes. The pump can be installed submerged or operated dry outside the pond; maximum permitted submersion depth is 4 m. The pump itself is rated IP68; the external switching power supply / transformer is listed as IP44. Control features documented by OASE include Seasonal Flow Control (SFC) — an automatic temperature-dependent flow adaptation that is switchable — and compatibility with OASE control units (Eco Control / Garden Controller / FM‑Master). The pump is supplied with an 8.00 m pump cable; the external power supply has its own mains cable (manufacturer documents examples such as 2 m mains cable for the supply). The manufacturer warranty is stated as 3 years plus 2 years on request. This description sticks to values and features documented in OASE’s product page and manual for the exact model; see limitations for site inconsistencies and missing manufacturer data.
Best for
Filtration and watercourse installations (waterfalls, streams) where an electronically controllable 12 V pump is required
Things to consider
Values are taken from OASE’s official product page and operating manual for the exact model (SKU 55313). OASE’s specification table and the operating manual list 19,300 l/h and 4.60 m (used above), but a descriptive paragraph on the same product page also states 18,600 l/h and 4.30 m — an internal inconsistency on OASE’s site. Net weight is inconsistent between sources (manual: 11.4 kg; product page: 15.494 kg). OASE does not list any integrated UVC lamp, nor do they provide manufacturer-rated pond/fish/koi capacities for this model on the product page or manual.
Installation
Can be installed submerged or operated dry outside the water. Maximum permitted submersion depth is 4 m. Pump connections are G2 threads and stepped nozzles are supplied for 38 / 50 mm hose sizes. The 12 V pump uses an external switching power supply/transformer (transformer/PSU has separate mains cable as documented in the manual). Seasonal Flow Control (SFC) is documented as only enable-able when the pump is submerged.
Maintenance
The unit includes a stainless‑steel coarse prefilter basket (intake surface 1,060 cm²) to trap coarse debris up to 11 mm; the basket should be inspected and cleaned as required to maintain performance. The manual should be consulted for any recommended service procedures for the external power supply.
Safety
Pump is rated IP68 for submerged operation; external switching power supply is rated IP44 and kept outside the pond. Observe OASE limits for maximum submersion depth (4 m) and operating temperature ranges in the manual. The manual documents frost resistance to −20 °C out of operation; consult the manual for full operating temperature tables and safety instructions.