午夜三级福利I 精品在线观看视频I 免费在线观看中文字幕I 伊人成人久久I 国产日韩欧美视频在线观看I 婷婷激情小说网I 色资源网免费观看视频

FEATURE

• In-line installation andlower water suction.

• Flow Gradient Mode(AUTO): Power, flow and head are changedupand downincyclesIdealfor modernlandscape construction.

• Multistage water flowis adjustable by regulation modes tomeetdifferent demands；

• High-effect and energy saving byDC frequency conversiontechnology

• Six-pole three-phase motor driving, stable and silentrunning；

• Multi protection functions by the single-chip build-in computer.

• With high-quality ceramic shaft and bearings, suitable for fresh and sea water.